For cylinder-selective knocking control. The good news is that it won’t cost you an arm and a leg to replace a bad knock sensor. When the crankshaft position sensor becomes inoperative, the camshaft position sensor provides different controls of the engine parts with the use of timing of cylinder identification signals. Talking to the repair guy said it was the fuel pump. Rough idling, stalling, a drop in power, slow acceleration, or reduced gas mileage could mean a bad cam sensor. Average repair cost is $260 at 101,900 miles. And as I mentioned at the beginning of the article the cam sensor test is done with a multimeter in Volts DC mode. My 2003 Infinity G35 engine shuts off 15 Answers. To replace them is a big job. But, the fastest way to get back on the road is to back off the timing. if you have a bad o2 sensor sending a lean signal to the ecu for one side of the engine, then yes is will drive the ECU to create a rich condition to compensate, fouling the spark plugs on that side. This would advance the distributor or misposition the cam position sensor reluctor ring. Over time, the camshaft position sensor can fail, or become worn down, due to accidents or normal wear and tear. Sensors, engine, intake. Re: p1336 camshaft/crankshaft sensors nope its not i found the problem and you wouldn't believe me if i told you. Camshaft For Sensor For Sale. The engine’s knock sensor (or sensors) detects preignition and detonation, potentially damaging forms of abnormal combustion. edited 6/03/2009. SUBARU knock sensor problems that cause the MIL/CEL to illuminate. The EA series engines don't seem to care. As the fuel injection (diesel engines) or spark ignition (petrol engines) is usually timed from the crank sensor position signal, failing sensor will cause an engine not to start, or will cut out while running. Hear it once and you'll never confuse it with anything else. Don't just replace the CPS (camshaft position sensor) and think that will definitely fix it. The most recently reported issues are listed below. Mercedes Camshaft Postion Sensor In this article, we discuss Mercedes Camshaft Position Sensor / Camshaft Hall Sensor (CAM) problems, symptoms and how to replace the CAM yourself. Sensors, engine, intake. The 2003 Chrysler PT Cruiser has 2 problems reported for camshaft position sensor issues. And as I mentioned at the beginning of the article the cam sensor test is done with a multimeter in Volts DC mode. Ford Triton V8 Cam Phaser Knock - How To Fix It There you are, sitting in a drive-thru and hear an awful noise. The camshaft angle sensor doesn't have an important effect on engine vibration or stall. If the mixture gets incredibly lean, it can cause your Civic’s engine to knock. The code stands for knock sensor bank one sensor one circuit input high. No, a faulty camshaft sensor can't cause a knocking sound unless it affects ignition timing. If you notice these things happening, you should have a certified mechanic from YourMechanic inspect why the car is slow to accelerate. change the timing belt and chain. about 2 months ago i poped a check engine light. The sensor is attached to the cylinder block, cylinder head or intake manifold. Bad fuel injectors , oxygen sensors , MAF sensor , and more can cause a lean air/fuel mixture. The parts cost will be anywhere from $65 to $200, while the labor costs will be anywhere from $50 to $350. (Each head's exhaust camshaft is driven from the opposite end of the other head. It is bolted to the front of the engine cover. However, if the attack rate is set too high, slight changes in throttle will cause rapid, undamped jumps in timing which can cause minor detonation. OK or NG. In other words, a knock sensor does not receive a reference voltage from the PCM – it creates its own. Other sensors can create problems too, but they aren't in a hot 800C exhaust stream. I'm not a 100% but it sounds like your camshaft position sensor went bad then caused the other codes to come up because the camshaft position sensor tells the computer how much gas it needs. Got the knock sensor wiring harness today and have a new GM gasket (part#89060413) on order. The sensor is located behind the #2 knock sensor on top of the lower plenum. A faulty Camshaft Position Sensor will likely cause your car's engine to backfire and operate inefficiently. The LS1-Vortec V8 camshaft sensor (CMP) The location of the CMP is on the top rear center of block. Light never did come on though. If you’re visiting this project from the DirtyShirt YouTube channel you’ve probably already read the comments from some of the other guys who state that we made the project harder than it really is. Sensor issues can cause the air/fuel mixture to lean out. A bad knock sensor causes a decrease in acceleration and fuel mileage. I have all new parts, high volume front cover, etc. I have the diagnostic service manual and it indicates that an intermittent CRANK position sensor can also throw this code. Check harness continuity between ECM terminal 15 and knock sensor (bank1) terminal 1, ECM terminal 36 and knock sensor (bank 2) terminal 1. The knock sensor is nothing but a crystal that'll send an electrical signal when it detects a mechanical pulse that the engineers have determined is consistent with pinging or knocking. When the censor malfunctions, the readouts may throw off spark timing which will impact fuel economy and cause the engine to misfire in some, if not all, cases. The vehicle will often shake or vibrate and misfire when the engine is started. The knock sensor is probably not the issue because if your sensor was bad, you would likely have a CEL and the timing would be way retarded and you would lack power. Unfortunately, it's a common occurrence for a Nissan knock sensor code to set on some of the automakers most popular engines and model automobiles. Engine is Knocking and Sputtering at Highway Speeds. One of the things I've heard about the early to mid 90's engines is that there's a sensitivity to how the knock sensor is installed. You need to be aware of Knock offs that get into the parts supply lines. my truck is throwing 7 codes currently. Recognizing the symptoms of a bad knock sensor and replacing it, may help you avoid costly repairs. ,Ltd is ABS sensors,Wheel speed sensors,Camshaft sensors,crankshaft sensors,Oil pressure sensors Manufacturers & Suppliers. How hard is it to replace the Cam Position Sensor? Is there anything in it that could cause this tapping?. using the 2. Knock is a problem, particularly in lean burning or high compression engines, as it can create excessive combustion chamber pressures. Standard or generic fault codes are a list of codes common to all manufacturers. This is usually caused by something hitting the engine/frame near the sensor in a way similar to the mechanics of a combustion knock. Think of when an average car will experience spark knock the most say going up a slow incline at 40MPH with the transmission in 4th gear - essentially those times that the engine is lugging. ive already replaced both of the freakin sensors (ran me abou $26 a pop) and the codes still there. The Temperature Gauge Sensor is at the front under intake manifold runner number two, just ahead of the knock sensor which is bolted in at an angle. I also agree with the others that the knock sensor code won't cause the trouble you are having and what may really be going on is, the problem you are having is causing the knock sensor code to occur. After that, pull the syncro and check it at 50K miles and replace again every 100K miles. Also, will make it not start from time to time. The most recently reported issues are listed below. Here we'll lay out the cause and correction of the knock sensor problems on these vehicles. I took it to a repair shop they told me it had bank 2 camshaft position. Cam sensors don't generally cause long cranks. Jeep Grand Cherokee 1999-2004: How to Replace Camshaft Position Sensor. The camshaft sensor on this car degraded with time (15 years old) and temperature (it stopped working hot). This information is used by the Engine Control Module() to control ignition and fuel injection. You may be a service technician that wants to look for references or solve existing problems. Do not believe bad cam pos. The code stands for knock sensor bank one sensor one circuit input high. It's also a tapping noise. Normally, you want the flame to propogate smoothly across the combustion chamber starting at the spark plug. It is also a three-wire Hall effect sensor, however it reads a reluctor plate on the front of the camshaft. The sensors cost from $ 35. Engines that are equipped with large, aggressive cam lobes can create enough mechanical noise to trigger false knock readings by the knock sensor and therefore cause the ECU to retard engine timing. Engine lost power, harder to start, higher gas consumption, ticking sound Fixed! After diagnosed with INPA, problem was bad camshaft sensor. It's worse in hot ambient temperatures too. Circuit Description. Adjusting knock sensor sensitivity going from a LS1 to LS7 block? Since switching from my stock LS1 engine to a forged LS7 engine, I have not seen any knock retard. Your valves have to open and close once for every 2 times your engine spins around. Over time, the camshaft position sensor can fail, or become worn down, due to accidents or normal wear and tear. It's hard to tell if it makes any difference because my 240 has so many underlying problems. It gets stronger/louder when the engine revs and seems to subside above 2000rpm. Sensors on certain models have been recalled by Nissan and will be replaced as necessary. Not only are the codes different when you have a problem with the Trailblazer camshaft position sensor, but the symptoms also become different. The LS1-Vortec V8 camshaft sensor (CMP) The location of the CMP is on the top rear center of block. Misfire Vibration, especially at highway speed. This can be temporarily fixed by switching the engine off and restarting the car, but since a broken camshaft sensor can cause ignition problems, this risks exacerbating the situation. Fixed! After diagnosed with INPA, problem was bad camshaft sensor. Would a bad knock sensor cause the car to idle high? This is a KA24DE in a 1990 240SXnot sure what year the motor is from. As such, over time this sensor can wear out and give in due to constant usage. Clean cam and crank sensor face. A broken camshaft position sensor will likely cause the car's engine to stall or operate inefficiently. The computer modifies ignition and in some cases valve timing, to lower cylinder temperature. Well, I will explain to you what a knock sensor does, but before I do that you may want to know that depending on the state you live in a failed knock sensor will result in a failed DEQ slip. If the pressure reading at the fuel injection manifold/rail is zero, your fuel pump is not working. The camshaft position sensor, of which there are two, are located in the heads. If your '03-'07, 5. OBD-II (1996-1997) knock sensor GM PART # 10456287 ACDelco #213-325. OBD1 ECU Knock Sensor Function - Why to disable the knock sensor; Cause of Burned / Fried Q31 Transistor in OBD1 ECU's. i live in ontario canada and i have been having intermittent engine stalls on my 2006 xtrail for some time. Camshaft Position Sensor Heated Oxygen Sensor (Bank 1, Sensor 1) Heated Oxygen Sensor (Bank 1, Sensor 2) Data Link Connector 3 Charcoal Canister VSV for Pressure Switching Valve Vapor Pressure Sensor ECM Oil Control Valve Variable Valve *2. Camshaft Position Sensor Problems of Infiniti G35 Infiniti G35 owners have reported 15 problems related to camshaft position sensor (under the electrical system category). The main function of a vehicle’s knock sensor is to sense for vibrations that are caused by the detonation or knock of the engine. Generally codes P0325, P0326, P0327, and/or P0328 may be present. Bad fuel injectors , oxygen sensors , MAF sensor , and more can cause a lean air/fuel mixture. A camshaft position sensor was not used on pre-GEMS systems. 9L Dodge Cummins Turbo Diesel truck is experiencing poor engine performance by getting the wrong amount of fuel to the engine, it could be the manifold pressure sensor. In general, the camshaft sensor works with the crankshaft sensor to send information to the ECU,(car computer), to synchronize some operations of the fuel injection system and knocking control. But to get knock your fuel is igniting early. I had my check engine and VCS light come on after I cleaned the battery terminals. The attached pic shows the new Toyota chain next to the factory chain, both hanging from a level bar. Once signs of detonation are detected (i. Bad Crankshaft Sensor symptoms? 03-28-2012 08:42 PM #1 I recently took my car to the shop trying to fix the problem of my car jerking when i accelerate sometimes. The camshaft position sensor helps a car's computer get the most out of its engine. The Causes of Internal Engine Knock, and How to Eliminate it. I filled the engine with the recommended 5w-20 and started it up. Failure of main bearings to the point of hearing a knock is rather rare in these engines, but noisy rod bearings are more common. But to get knock your fuel is igniting early. Carbon retains heat, and a bit of carbon buildup on a plug can cause occasional unwanted ignition. Re: Camshaft position sensor problems I have heard some small amount of chirping when the truck is cold but that sounds like it is coming from the belt. The symptoms match. I'm gonna' show you a way to do it with just a multimeter (in Volts DC mode) that is so accurate that you'll be able to say, 'Yes, the cam sensor is BAD' or 'No, the. Detonation can cause the head gasket to fail, piston lands to crack and rings to break, as well as possible rod bearing damage. A camshaft is commonly used to. The top of the motor has to come off. Check for the root cause of the deposits, fix any issues, and then remove the deposits with a chemical cleaner or via wire brush or scraper (requires removal of heads). Camshaft Position Sensor (CMPS) [Bank 1 / Exhaust] 9. The 2005 Ford F-150 has 62 problems reported for loud ticking/knocking noise from motor. I can actually put my hand on the sensor and feel a physical tapping coming from it. Eventually, the signal will weaken so much the signal will switch off, and so will the engine. Find Caspers Electronics Knock Sensor Wiring Harnesses with LS1 Cam Sensor Adapter 109081 and get Free Shipping on Orders Over $99 at Summit Racing! Caspers Electronics knock sensor wiring harnesses with LS1 cam sensor adapter allow the cam sensor used on the front of an LS2/3/4/7/9 engine to be plugged into the LS1 cam sensor connector located at the back of the intake manifold. ,Ltd is ABS sensors,Wheel speed sensors,Camshaft sensors,crankshaft sensors,Oil pressure sensors Manufacturers & Suppliers. How hard is it to replace the Cam Position Sensor? Is there anything in it that could cause this tapping?. This is because the exact position of the camshaft sensor depends. Jeep Grand Cherokee 1999-2004: How to Replace Camshaft Position Sensor. Can a bad crank timing sensors cause a loud knock. If a camshaft position sensor wears enough, it may stop sending any signal to your ECU. com FREE DELIVERY possible on eligible purchases. if you have an xtrail please hear this. Installed the MSD coil on my 99 Subaru Legacy GT. Camshaft Position Sensor Problems of Nissan Maxima Nissan Maxima owners have reported 11 problems related to camshaft position sensor (under the electrical system category). As long as I've had the truck it will throw this code when its cold out. The symptoms of a bad knock sensor typically occur during heavy loads or at high speeds. I do plan on following the wires that lead to the cps and i did install it correctly, or so my dad says as he is a auto mechanic. The LS1-Vortec V8 camshaft sensor (CMP) The location of the CMP is on the top rear center of block. Inspect the wiring, make sure it hasn't been chewed up by rodents. Hear it once and you'll never confuse it with anything else. May be used with or without mechanical drive water pump, but must be used with a single row timing set. This is because there are some things that can stop the crankshaft position sensor's signal that will have nothing to do with the sensor going bad such as running out of gas or stalling the engine when letting the clutch pedal out to quickly. The knock sensor helps prevent detonation - learn more here. The camshaft angle sensor doesn't have an important effect on engine vibration or stall. The Camshaft Position Sensor is an electronic device used in an engine to record the rate at which the camshaft is spinning. Get a catch can or air/oil seperater. Re: Camshaft position sensor problems I have heard some small amount of chirping when the truck is cold but that sounds like it is coming from the belt. It is usually accompanied by a P0340, since the knock sensor will not cause your warning light to come on. Knock prediction [ edit ] Since the avoidance of knocking combustion is so important to development engineers, a variety of simulation technologies have been developed which can identify engine design or. Well that sensor for this truck has. The top of the motor has to come off. A reluctor is attached directly to the camshaft, and is used to generate a digital signal as it passes the magnetic coil; the alternating lines of magnetic flux are. Soldered all the connections. The camshaft position sensor (CMP) is just one of the many electrical parts found in a vehicle. But in a GM LS-series engine the crankshaft position sensor can cause the symptoms your describing. My engine is a freash rebuild as well with about 4k on it. Symptoms can include:. knock sensor code with new knock sensors? This is a discussion on knock sensor code with new knock sensors? within the General Help forums, part of the LSx Technical Help Section category; A few months ago i had my knock sensors replaced because one was bad. Timing and Lift Engine Coolant Temp. These come in 3 types either 4 Digit, 5 Digit of P codes. Knocking is a phenomenon characterized by undesirable vibration and noise and can cause engine damage. The sensor is responsible for collecting information about the car’s camshaft speed and send it to the Engine Control Module (ECM). Therefore, it is important to recognize the symptoms displayed by a faulty knock sensor to prevent the engine from severe damage. The knock sensor itself is not a very expensive buy. The knock sensor informs the computer that when knocking, such as pinging or valve clatter occurs. The cause is often a problem in the idle air control system. As long as I've had the truck it will throw this code when its cold out. Nothing you can change or adjust there anymore. Read how the system operates ans some causes for this to turn on the check engine light. The CMP sensor works in conjunction with a 1X reluctor wheel on the camshaft. Signs of a Bad Knock Sensor The knock sensor is a sensitive piece of equipment that takes a lot of heat from the engine. Diagnosing Cam Position Sensor vs. I can actually put my hand on the sensor and feel a physical tapping coming from it. Replacing the knock sensor usually takes care of the problem. Learn how to replace it here. Deposits on the cylinder walls. Knock sensor codes on this vehicle are meaningless, the knock sensor does nothing unless the engine knocks. The job of the knock sensor is to send a signal to the PCM indicating abnormal noises in the engine that may be occurring, like spark knock. camshaft position. Symptoms can include:. P0040 - Oxygen Sensor Signals Swapped Bank 1 Sensor 1/Bank 2 Sensor 1 Description: The heated oxygen sensor (HO2S) monitor determines if the HO2S signal response for a fuel shift corresponds to the correct engine bank. This is especially important with SFI. And as I mentioned at the beginning of the article the cam sensor test is done with a multimeter in Volts DC mode. Knowing the symptoms of a bad camshaft sensor can help a mechanic navigate the often complex systems of ignition and engine performance. Would a bad knock sensor cause the car to idle high? This is a KA24DE in a 1990 240SXnot sure what year the motor is from. A knocking vibration from the cylinder block is sensed as vibrational pressure. To help determining whether an inductive camshaft sensor is functioning correctly, different possible deviations from the example signal are mentioned along with probable. Plus, a replacement cam position sensor can effectively be used in an internal combustion engine to. Clean cam and crank sensor face. The knock sensor tells the computer when detonation is occurring. It's much like a distributor, but has a position sensor mounted to it at the top. The knock sensor is a technically advanced sound sensor in the engine that adjusts the timing of the ignition, enabling a smooth ride. Normally, you want the flame to propogate smoothly across the combustion chamber starting at the spark plug. This provides a signal to the PCM, indicating the temperature of the incoming air charge. 0 with more than 80K miles on it you should replace the syncro shaft. I already bought a new Felpro gasket, but read on a few other forums that the new GM gasket is redesigned. You look around to try and figure out whose car is about to blow up — and to your dread, that noise is coming from your engine!. A spark knock or detonation, as it is commonly referred to, is a form of combustion that can cause different kinds of damage and failure to the engine. Knock Sensor. I would leave the knock sensor alone. OBD-I (1993-1995) knock sensor GM PART # 10456126 ACDelco #213-96. This information is used by the Engine Control Module(ECM) to control ignition and fuel injection. Disconnect knock sensor harness connector. P0327 Knock sensor circuit low input; P0328 Knock sensor circuit high input. So it started a chain reaction with the fuel level sensor, fuel temperature sensor, and knock sensor codes. Jeep Grand Cherokee 1999-2004: How to Replace Camshaft Position Sensor. i changed both the crankshaft and camshaft sensors with after market. This may cause the spark to "Jump", and you would be able to hear and Camshaft Position Sensor and the Knock Sensor. These knock sensors are located beneath the intake manifold on the engine valley cover and can be accessed rather easily for service. When the sensor begins to fail it provides an intermittent signal. The camshaft position sensor senses the retraction of camshaft (intake) to identify a particular cylinder. Ford Triton V8 Cam Phaser Knock - How To Fix It There you are, sitting in a drive-thru and hear an awful noise. Sensors, engine, intake. The cam sensor is a magnetic sensor that tells the computer on start up what position the cam is at in relation to the crankshaft. To diagnose the problem, verify that the fuel pump is working by jumping it directly with a 12v battery source. Throttle Position Sensor (TPS) [integrated into ETC Module] 6. Although this article concentrates on the basics of Crankshaft Position Sensors, you can apply most of this info to the Camshaft Position Sensors too. With this, the PCM will retard the spark timing to avoid pre-detonation. When the mechanic replaced my motor he RTV'ed the knock module in, could this effect it (i. Also will need to disconnect the sensor a verify 12 volt refernece. P0340 Meaning The Camshaft Position Sensor is an electronic device used in an engine to record the rate at which the camshaft is spinning. First of all, I wouldn't take anyone's word on changing the sensor. 3l s10 location,96 s10 speed sensor location, and others. Can a cam sensor malfunction indicated by the code p0340 cause an engine knock? 6 Answers. This is usually caused by something hitting the engine/frame near the sensor in a way similar to the mechanics of a combustion knock. This may result in poor engine performance or starting failure. Does anyone know anything about this problem? It was running fine and all of a sudden there was no power and the check engine light came on. It is one of the devices that helps the engine run smoothly. That's when you're going to experience the most problems with bad knock sensors too. I was wondering maybe if the oil pressure relief spring could cause a noise similiar to what I have. Replied by KNE on topic Pro Tip: Chevrolet Cruze Knock Sensor Codes Not really sure what the recommended torque for these bolts is. The job of the knock sensor is to send a signal to the PCM indicating abnormal noises in the engine that may be occurring, like spark knock. It is basically the computer’s ear to the engine to determine if it is working properly. Oxygen Sensor (G39) The oxygen sensor (G39) is made of a ceramic material called zirconium dioxide. Would a bad knock sensor cause the car to idle high? This is a KA24DE in a 1990 240SXnot sure what year the motor is from. This is because there are some things that can stop the crankshaft position sensor's signal that will have nothing to do with the sensor going bad such as running out of gas or stalling the engine when letting the clutch pedal out to quickly. This information is used by the Engine Control Module() to control ignition and fuel injection. -- Engine or rod knock is very distinctive. Do not have misfires at RPMs above 2000. The camshaft sensor on this car degraded with time (15 years old) and temperature (it stopped working hot). What Does a Knock Sensor Do? The knock sensor is aptly named, as its job is to determine if the pulsations - or knocks - that are coming from engine detonation are abnormal or not. Ships from Torrington CT. i happen to look up knock sensor and i just happen to have one from a truck i took the part off and i just took it for a ride 46 miles and wa la no check engine light but my o/d i will deal with tomorrow as i have some time. This is usually caused by something hitting the engine/frame near the sensor in a way similar to the mechanics of a combustion knock. These vibrations or engine noises are caused by detonation. If the value is less than -7% there could be an air restriction, erroneous signal from the air mass meter, or too much fuel in the system. When the knock sensor is damaged or broken, the detonation process is not regulated properly. if you have an xtrail please hear this. OBD-II (1996-1997) knock sensor GM PART # 10456287 ACDelco #213-325. Got a 2001 Chevrolet Silverado 2500hd with the 8. What can cause the code P0341: - a faulty camshaft position sensor - improperly installed sensor - damaged or misaligned reluctor wheel - foreign materials between the camshaft sensor and the reluctor wheel - open, short or bad connection at the camshaft position sensor connector or wiring - improper timing - a timing belt or chain jumped a tooth. Chevy 5 3 Sensor Location • this is images about chevy 5 3 sensor location posted by Alice Ferreira in Chevy category. The CMP sensor works in conjunction with a 1X reluctor wheel on the camshaft. I would more tend to think dirty throttle body, COP weakness, possible plug problem and other things that can cause those occasional hiccups. This occurs when the heat and pressure in the combustion chamber of the engine. I checked the codes and it read: P0330 Knock Sensor (Bank 2) I reset the codes but they came back on a few mins later. May be used with or without mechanical drive water pump, but must be used with a single row timing set. Make sure all are connected. This list of faults, also called DTC (for Data Trouble Code) has been defined so that any diagnostic device can read and decode them. Throttle Position Sensor (TPS) [integrated into ETC Module] 6. Other sensors can create problems too, but they aren't in a hot 800C exhaust stream. Re: p1336 camshaft/crankshaft sensors. This is because there are some things that can stop the crankshaft position sensor's signal that will have nothing to do with the sensor going bad such as running out of gas or stalling the engine when letting the clutch pedal out to quickly. As the intensity of the crystal's vibration increases, the knock sensor output voltage also increases. One head has its sensor at the front of the engine and the other head has its sensor at the back of the engine. Spark plugs can cause this issue as well if they are worn. However, if the attack rate is set too high, slight changes in throttle will cause rapid, undamped jumps in timing which can cause minor detonation. If your engine is knocking you are having detonation problems and the Knock sensor is not functioning properly. In this way, the magnetic field can cause the voltage from the sensor to change. I would have someone with a diagnostic scanner (not a code reader) hook up to it and see what the live data is doing and also see what all codes you have stored. It's also a tapping noise. My cam sensor also doesn't seem to be out of spec on clearance. 4L Frontier or XTerra is located inside the engine's distributor. You look around to try and figure out whose car is about to blow up — and to your dread, that noise is coming from your engine!. Then it was right back to sputtering. If you have a standard economy vehicle, you can expect to pay anywhere from $120 to $500 for replacing your knock sensor. Sensors for Volvo S60 (2001 - 2019): Camshaft Position Sensors, Crankshaft Sensors, Knock Sensors, Oil Level Sensors and the Knock sensor is not functioning. Camshaft position sensor problems can affect a vehicle's engine timing. When it is faulty it affect your ride, fuel economy, and possibly long term damage to engine parts. The Ford Ranger camshaft position sensor rarely fails, but when it does, it poses several problems. Bad Engine Performance - A faulty camshaft position sensor will cause an improper amount of fuel to be injected into the cylinder chamber. To maximize fuel efficiency, the computer tries to have your engine run just at the hairy edge where it's about to knock. The 2 beeps/minute can be generated by: cam sensor open or shorted, engine cooling temperature circuit open or shorted, coil harness wire (EST) open or shorted, fuel injector open or shorted, IAC output, knock sensor, MAP sensor, MAT sensor, oil pressure circuit open or shorted, port/starboard exhaust manifold cooling temperature circuit open. A quick steady tap may indicate lifters or cam lobe, while a clatter may be loose/worn rocker arms. Everything ran fine, except when hitting 70MPH or so in 5th gear, it will flick the CEL light on. Although this article concentrates on the basics of Crankshaft Position Sensors, you can apply most of this info to the Camshaft Position Sensors too. But vehicles that use direct injection or TCS(Traction Control System) must recognize individual cylinder, so camshaft sensor has a big influence on the vehicle. Crankshaft sensor (CKP) The crankshaft sensor is a 24X (58X on 2004 and later engines) pulse sensor that controls ignition coil firing and injector pulse. In general, the camshaft sensor works with the crankshaft sensor to send information to the ECU,(car computer), to synchronize some operations of the fuel injection system and knocking control. This speed is then used by the car's internal computer for proper fuel injection and ignition. Don't just replace the CPS (camshaft position sensor) and think that will definitely fix it. Bad fuel injectors , oxygen sensors , MAF sensor , and more can cause a lean air/fuel mixture. Crankshaft Position Sensor (CKPS) 7. OBD-I (1993-1995) knock sensor GM PART # 10456126 ACDelco #213-96. Now the two pins on the cam locate into the to slidey blocks (one on the lower plate and one on the upper one). after i replaced my single cam vtec engine i started to get the knock sensor code 325. The acceleration and fuel mileage will start to decrease for one thing. Vehicle does not drive like it used to. The Camshaft Position sensor is mounted through the top of the engine block at the rear of the valley cover. Also, will make it not start from time to time. Then I pick up my car and before I get home the same code comes up on the computer. This is especially the case at low engine revs - at higher rpm, the attack rate can also be higher. The ideal ignition point for fuel in the combustion system is a burn that takes place just before the point of detonation, which is like an explosion. 3 CPS Replacement 7. It will set a code, but is designed not to throw up a check engine light. I have a 2003 Infinity G35 sedan the engine will die at a stop, the check engine light, slip light and VDO light will come on. Detonation occurs in an engine when there’s not enough fuel or there’s something wrong with your 2. Whether you love driving off-road or on normal paths only, there are two types of knock sensor that you can pick from: Broadband single wire sensor: This is the older type of knock sensor in the automotive market. Welcome to the Mazda Check Engine Light codes page. Went to local auotparts store, had my truck scanned because it would barely stay running while putting it into gear after first starting out. I doubt that would cause my knock sensor to fail.