Other

Will a malfunctioning cam or Crank Sensor illuminate the check engine light or affect vehicle operation?

Will a malfunctioning cam or Crank Sensor illuminate the check engine light or affect vehicle operation?

Will a malfunctioning Cam or Crank Sensor illuminate the check engine light or affect vehicle operation? Yes, a failing sensor can illuminate the MIL, and may cause vehicle stalling or a no-start condition.

Why do I need to change the camshaft position sensor?

The problem with changing out the camshaft position sensor is that sometimes the issue is actually due to the sensor wiring harness; which might be the reason this OBD-II error code was triggered initially. The P-0340 trouble code indicates that the signal to and from the camshaft position sensor and the PCM is broken.

Why is my crank and cam sensor not working?

If it is giving a signal, then the cam and crank signals are way off and causing the wrong ignition timing. If you need to have a local expert come check this problem for you, a certified technician from YourMechanic can come to your car’s location to diagnose the hard starting issue and pinpoint the correct fix.

What happens to the crank sensor on a GMC?

The crankshaft sensor on GMC vehicles is synced to the powertrain control module, or PCM. When the crank sensor is replaced, it must be resynced to the PCM. Without resyncing, the PCM cannot properly determine the position of the crankshaft.

What’s the best way to check a check engine light?

The best way to ensure your repair was done correctly is to have a professional mechanic complete a check engine light inspection; which will allow them to determine if the issue’s fixed and reset the codes for you. The statements expressed above are only for informational purposes and should be independently verified.

The problem with changing out the camshaft position sensor is that sometimes the issue is actually due to the sensor wiring harness; which might be the reason this OBD-II error code was triggered initially. The P-0340 trouble code indicates that the signal to and from the camshaft position sensor and the PCM is broken.

Is there a cam sensor code on my car?

Unfortunately, you will now most certainly have a cam sensor code, since you unplugged it, and you won’t know if it was there before or only as a result of your unplugging it. The cheap scanner works fine. Reads and clears codes. The codes are posted in various places on the forum and you get a CD with the scanner that has code translations.

The crankshaft sensor on GMC vehicles is synced to the powertrain control module, or PCM. When the crank sensor is replaced, it must be resynced to the PCM. Without resyncing, the PCM cannot properly determine the position of the crankshaft.

What to do if your camshaft position sensor says p0340?

Visually inspect the camshaft position sensor connector in search of corroded or broken connectors. Make any other repairs (if other codes are present) to make sure that other codes are not sources of the trouble code P0340. Check your camshaft position sensor’s voltage, ground, and signal readings with a multimeter.

Author Image
Ruth Doyle