The camshaft sensor enables the engine control to determine the exact position of the crankshaft drive. This information is required to calculate the ignition point and injection point, among other things. On this page, you can find out how a fault on the camshaft sensor can manifest itself, and which steps should be taken during troubleshooting. Received 11 Likes on 11 Posts. Crank Position sensor learning procedure fails. Good morning guys, I had the crankshaft and camshaft position sensors changed in my 2007 base model. It ran quite badly afterwards, pops and bangs and low on power, very rich exhaust fumes. And the RPM gauge was dead. 1. Disconnect connector P401 from the primary speed/timing sensor. 2. Attempt to start the engine. If the engine starts, check for a fault in the circuit for the primary speed/timing sensor. Refer to Troubleshooting, "Engine Speed/Timing Sensor Circuit - Test". 3. 4. If the engine does not start, inspect the timing ring on the crankshaft for There are a few things that can cause the oil temperature sensor to fail, one of them is wiring damage. Over time, if the wires become worn or are shorted out, the sensor will fail and will need to be replaced along with the wiring. In addition, corrosion can cause oil temperature sensor to fail or read incorrectly. In some cases, a mechanic P1351: 'Fault on the pre-postheating relay circuit : Relay controlled / plugs not controlled' P0339: 'Intermittent fault, Engine speed signal: Incorrect signal' Try cleaning the crank sensor electrical contacts - it's quite low down on the C3, and can get a lot of crud and water inside. Some electrical contact cleaner might also help. My Peugeot 2008 1.6VTi suddenly reported engine fault. I have bought a cheap ODBII scanner to check for a fault code.I have found that fault P0343 can be cau There are several other symptoms of a bad crankshaft position sensor. Crankshaft position sensor symptoms include the following: 1. Difficulty Starting the Vehicle. One of the most common symptoms, if not the most common, of a failing or bad crankshaft position sensor, is the problem with starting the vehicle. The mirrors are not folding out, SERVICE light on board, the screen scrolls a lot of fault messages and the sounds come from the dashboard ( the radio, lights and locking systems are working normally). I usually "fix" the problem by removing the positive terminal on the battery, wait for 5 min and reconnect it. OBD2 Code P0337 Citroen definition: The Crankshaft position sensor also known as the crank position sensor is an electronic device used in an engine to record the rate at which the crankshaft is spinning. This information is used by the Powertrain Control Module (PCM) or Electronic Control Module(ECM) to control ignition and fuel injection. Joined: Sep 21 2010. Location: Merseyside. Hi, took my car to Dealer 1, for Diagnostic, they found three faults. 1) Engine speed sensor, not working/missing (permanent) 2) EGR valve sticking, lumpy when idling (temporary) 3) Two different readings from brake switch (temporary) My question is, I bought the sensor while I was there and they told gaEe.