Skip the auto shop - Our mechanics make house calls

Q: i had a code for bad cam position sensor, i changed it and car still will not start? what else could be the problem

asked by on

My car died while I was driving. I got it back to my house. I checked the codes with this CarMed device I have. It told me P0340 and P0344. I then changed the cam position sensor. No luck. car still will not start. The P0344 went away now I still have the P0340. Which is the circuit indicator. Where is that. How do I fix it.

My car has 153000 miles.
My car has an automatic transmission.

A: Most of the time when a code is thrown that...

Most of the time when a code is thrown that is related to the camshaft position sensor, the sensor is not the issue. It is possible that the crankshaft position sensor, the wiring for the camshaft or crankshaft position sensor, or the powertrain control module could be faulty. I would recommend having this issue inspected by a qualified professional to determine whether or not these other parts are functioning properly. If not, I would recommend having any faulty parts that do not past the test replaced as soon as possible in order to resolve this issue. YourMechanic can actually replace your camshaft position sense if necessary.

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: There is a squeaky noise coming from the right side of the vehicle.

Hello. If adjusting the e-brake helped then the issue is usually in the e-brake shoes. It is common for the hold down hardware for the brakes to wear out allowing the brakes to shift. When this occurs they will rub...

Q: Estimate for upper and lower ball joint replacement

Hi there: In most cases the steering wheel vibration at these speeds are indicators of a tire / wheel balance that is off or has changed due to a wheel weight falling off or the the tire or wheel being...

Q: Car won't start and clicks when the key is turned

Hello - you may have already diagnosed the problem yourself - well done! By that I refer to your comment that if you jiggle or bang on the shifter, it sometimes makes the difference in starting or not. The neutral...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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...