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Camshaft position error posting

 
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  #1 (permalink)  
Old 04 May 2014, 09:12 pm
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Default Camshaft position error posting

This is my first post so please be gentle.

I'm working on my son's 2003 PT (non-turbo) which has been having starting problems recently. I was getting P0340 error after clearing but only after getting the PT to start which was occasionally and sometimes after letting it sit for awhile. When it did run it seemed to run well but shortly after starting the alarm would ding and MIL would light.

My question is, just when does the P0340 error get posted? I haven't been able to get a start for several hours now and I can't get the P0340 back even when I unplug the sensor and try to crank. I've tried unplugging the air temp sensor and got the P0113 error right away.

I hope this isn't a PCM going bad.

TIA!
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Old 04 May 2014, 09:21 pm
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Default Re: Camshaft position error posting

I believe it takes two driving cycles for that to come back on. fortunately I just replaced my sensor and it is a very easy fix. A lot of people go ahead and replace the target magnet also. It's best to use Mopar parts not aftermarket. Good luck and please post to let us know how it worked out.
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Old 04 May 2014, 09:35 pm
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Default Re: Camshaft position error posting

How are you getting the codes? If using the key dance that code will sometimes not show up. It didn't on mine. I had to use my code reader for it to show. Mine would run but it kept going into limp mode.
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Old 04 May 2014, 09:51 pm
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Default Re: Camshaft position error posting

When I did get it to start the code showed up shortly after startup. I've removed the sensor and verified the sensor wheel is turning. During cranking the car shakes a little so I'm thinking maybe the timing belt has jumped but it has started on occasion and runs fine when it does so maybe not the belt.
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Old 05 May 2014, 12:32 am
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Cool Re: Camshaft position error posting

Quote:
Originally Posted by fretless52 View Post
I'm thinking maybe the timing belt has jumped but it has started on occasion and runs fine when it does so maybe not the belt.
Being out of timing with a belt that has jumped,or thrown 1-3 teeth/notches will give the symptoms you're describing,and when everything lines up occasionally,it will allow it to start & run (probably rough),but then it will eventually die at idle speed.
You didn't say how many miles?....Is it by any chance near,or at 100K+/- on the odo???
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Old 05 May 2014, 03:25 am
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Default Re: Camshaft position error posting

The PT is near 130k but we've had it less than 10k and don't know the service history. I am going to replace the belt/water pump but would like to prove to myself that this problem is not something else, as it seems sometimes just letting it set for awhile allows it to start and when it does it runs normal.

I'd still like to know if the P0340 code will occur just during cranking or if the engine needs to be running to generate the error.

Thanks to all for your input.
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Old 05 May 2014, 07:15 pm
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Default Re: Camshaft position error posting

OK, I read a thread about check engine light with no codes on this forum and it mentioned a fuel cap issue. I tried removing the fuel cap and replaced it. Now the pt starts and runs with absolutely no codes. I'll let you know if the problem re-occurs.
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Old 06 May 2014, 07:20 am
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Default Re: Camshaft position error posting

BTW: here's a link to the page that tipped me off.
Check engine light is on, but no codes?

Thanks to God it wasn't anything major (or expensive) as I have a way with messing things up myself.
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Old 06 May 2014, 08:19 am
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Default Re: Camshaft position error posting

some threads give incomplete or bad technical diagnostic information from untrained individuals.
I recommend to read what is on the boards seeking help as a starter only and then go read a FACTORY SERVICE MANUAL for the correct procedures and information.
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Old 06 May 2014, 10:59 am
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Default Re: Camshaft position error posting

A gas cap issue won't stop the Cruiser from starting. Or at least I have never heard of it happening.

When my camshaft position sensor went bad it was intermittent and it would set the light with no codes. It finally went into limp mode one day and wouldn't recover. It still wouldn't show any codes. I had to hook up my code reader to be able to pull them.

I would be willing to bet money your issue isn't resolved and will come back.
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