Camshaft position sensor

Irun

Irun

A vicious cycle of doing, undoing, and re-doing!
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I came out from work today and had a no start condition. Tried 4 times to start it, nothing. Then on the 5th time the engine turned over slower, but started. The check engine light was on, code P0340, but it ran fine all the way home. I pulled the sensor and checked that there was 5 volts coming from the ECU, it was good there. The other side also read 5 volts (for some reason I thought this was supposed to be 12V?).

Since the Mopar sensor is no longer available, what's my best option? I did some research and didn't see a clear choice. Also, the sensor that is in the Jeep is clearly an aftermarket sensor, but I'm not sure what brand it is.
 
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Irun said:
I came out from work today and had a no start condition. Tried 4 times to start it, nothing. Then on the 5th time the engine turned over slower, but started. The check engine light was on, code P0340, but it ran fine all the way home. I pulled the sensor and checked that there was 5 volts coming from the ECU, it was good there. The other side also read 5 volts (for some reason I thought this was supposed to be 12V?).

Since the Mopar sensor is no longer available, what's my best option? I did some research and didn't see a clear choice. Also, the sensor that is in the Jeep is clearly an aftermarket sensor, but I'm not sure what brand it is.
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There's still a few mopars out there. Try calling Roberson Chrysler and Jeep here in Salem, OR. They were able to find some leftover stock at a different dealer in Washington just a few months ago. Had me pay over the phone and it was shipped right to my door.

Edit: I forgot what year your jeep is. Mine is an 02, so we may be talking about different sensors
 
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Irun said:
I came out from work today and had a no start condition. Tried 4 times to start it, nothing. Then on the 5th time the engine turned over slower, but started. The check engine light was on, code P0340, but it ran fine all the way home. I pulled the sensor and checked that there was 5 volts coming from the ECU, it was good there. The other side also read 5 volts (for some reason I thought this was supposed to be 12V?).

Since the Mopar sensor is no longer available, what's my best option? I did some research and didn't see a clear choice. Also, the sensor that is in the Jeep is clearly an aftermarket sensor, but I'm not sure what brand it is.
Click to expand...
Just fixed mine today, it died on me 2 days ago haha. Ended up using a old opda and cmp sensor from my old engine from an engine swap. Rock auto has ntk ones for $36 should be alright. I bought one as a backup for trail runs, weird though that they died, my question is why didn't our jeeps go into limp mode (at least mine, 0 start for me)... I also had a bunch of codes along with that p0340 and p1391. Found a bad o2 fuse, put a new one in so I'll be watching those. As for the codes in regards to cps/cmp I had to take the negative terminal off to reset the codes, took it on a good drive, and no engine lights now!
 
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Irun said:
I came out from work today and had a no start condition. Tried 4 times to start it, nothing. Then on the 5th time the engine turned over slower, but started. The check engine light was on, code P0340, but it ran fine all the way home. I pulled the sensor and checked that there was 5 volts coming from the ECU, it was good there. The other side also read 5 volts (for some reason I thought this was supposed to be 12V?).

Since the Mopar sensor is no longer available, what's my best option? I did some research and didn't see a clear choice. Also, the sensor that is in the Jeep is clearly an aftermarket sensor, but I'm not sure what brand it is.
Click to expand...
Before you go changing the cam sensor, check your battery voltage. You said the 5X it cranked slower.
If cranking voltage drops below 10.5 volts, you may experience a no start.
As for the sensor itself, it's a hall effect sensor. You have a 5 volt reference, a ground and a signal back to the PCM.
 
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williambmac said:
Before you go changing the cam sensor, check your battery voltage. You said the 5X it cranked slower.
If cranking voltage drops below 10.5 volts, you may experience a no start.
As for the sensor itself, it's a hall effect sensor. You have a 5 volt reference, a ground and a signal back to the PCM.
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I did check the battery voltage and all was good. I'm not sure what caused the slow crank on the 5th attempt, but it did start then. I verified the cam sensor was bad last night. It would occasionally not drop to zero volts when it should have. (y)
 
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Irun said:
I did check the battery voltage and all was good. I'm not sure what caused the slow crank on the 5th attempt, but it did start then. I verified the cam sensor was bad last night. It would occasionally not drop to zero volts when it should have. (y)
Click to expand...
Did you just run it the one time after yours died? Weird that mine had died and then could not start at all...
 
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