Skip the auto shop - Our mechanics make house calls

Q: Check Engine light and camshaft position sensor code

asked by on

The Check Engine Light goes on and off. Also, the camshaft position sensor code is preventing me from passing a smog check.

A: Hi. If you have a camshaft position sensor ...

Hi. If you have a camshaft position sensor code that is coming up, then that is why the Check Engine Light is coming off and on. Most of the time, this is caused by a sensor failure, but it can also happen if the cam timing is off. If the timing belt has not been changed on the engine, then it may be worn out and is affecting the valve timing which will trigger these codes. A mechanic would typically inspect the valve timing and also check to see if the cam sensor is falling within resistance specifications. I would recommend you have a mechanic, like one from YourMechanic, inspect the Check Engine Light and repair any damaged parts.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Audi A4 makes noise In Sport Mode

Switching to sport mode only changes the transmission software. So I don't think you are actually experiencing a transmission problem. But the "sport mode" program enables the engine to reach higher speeds before shifting gears, so it could be that...

Q: Timing change

Hey there. The sound does not increase with speed or while turning the vehicle left or right? If the vehicle only makes the sounds while moving, you may even have a faulty wheel bearing assembly. A worn wheel bearing will...

Q: What kind of oil can I put in my car and can I put it in myself?

The oil pressure light will illuminate if the oil level in the engine has fallen so low that adequate pressure cannot be maintained. If the oil level is low, for your specific make and model you should add oil with...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...