Cranks will not start and engine code P0340

Tiny
ANGEL11022
  • MEMBER
  • 2012 CHRYSLER 200
  • 2.4L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 120,000 MILES
I'm getting this code it says about a circuit about a camshaft but I checked and all my wiring is good. Also I replaced the camshaft position sensor and still nothing. My car cranks but won't start?
Monday, July 20th, 2020 AT 11:58 PM

6 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good morning,

When you checked the wiring, did you check the voltage to the sensor? You need to remove the connector and test for voltage at the sensor. The 2 end wires of the connector must have 5 volts with the key on.

https://www.2carpros.com/articles/how-to-check-wiring

https://www.2carpros.com/articles/car-cranks-but-wont-start

https://www.2carpros.com/articles/abs-wheel-speed-sensor-test

I would also do a compression test to be sure it is not a chain issue with valve timing.

https://www.2carpros.com/articles/how-to-test-engine-compression

I would also start by checking the fuel pressure to be sure there is sufficient pressure for the system.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

When you crank the motor, does the tachometer move up a little showing RPM? That will tell me if the crank sensor is sending a signal to the ECM.

https://www.2carpros.com/articles/how-to-test-an-ignition-system

Roy
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Tuesday, July 21st, 2020 AT 5:17 AM
Tiny
ANGEL11022
  • MEMBER
  • 8 POSTS
Yes, I checked both wires and they say around 5 volts.
I checked the compression and they came out around 90 psi.
I checked my fuel pressure and it's fine.
When I try to start my car it shows little rpm.
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Thursday, July 23rd, 2020 AT 2:20 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Okay, first, compression is low. Sounds like the valve timing is off and that alone will set the 340 code.

https://www.2carpros.com/articles/how-a-timing-belt-works

I attached a YouTube video on the timing marks for you.

https://www.youtube.com/watch?v=Yxhx83g1LYE

Second, how many wires on the cam sensor?

What was the fuel pressure reading?

Roy

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Thursday, July 23rd, 2020 AT 3:18 PM
Tiny
ANGEL11022
  • MEMBER
  • 8 POSTS
So I checked my cam sensor again and I barely realized that my other sensor was broken.
Also some water got mixed with oil in my engine.
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Friday, July 31st, 2020 AT 4:07 PM
Tiny
ANGEL11022
  • MEMBER
  • 8 POSTS
Here's the cam shaft sensor rear:
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Friday, July 31st, 2020 AT 5:14 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Okay, did you check the timing belt marks to see if they are correct?

Roy
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Friday, July 31st, 2020 AT 9:37 PM

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