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Sensor problems

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  #1 (permalink)  
Old 30 Oct 2014, 11:56 am
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Question Sensor problems

Hello. I have a PT Cruiser 2010 Decade Edition and I live in Brazil.
Around 6 months ago my car started to show the MIL light "on" and the engine was stalling above 2000 rpm. I went to a maintenance shop and a scan tool showed a 108 code. Ok, I changed the MAP sensor, but the problem remained the same, after some hours. Nowadays the problem remains, sometimes it desapears, after that it returns and remains for several days. Today I went to another maintenance shop, they made several tests using the scan tool and concluded it is not a MAP sensor problem, but maybe a Camshaft position sensor problem, or wires problems. We decided to try to fix it next week.
After 4 hours I was almost arriving home, I stoped to a gas station to fuel, after that I drove 3 squares and my car started to overheat. Actually, I only noted some cooling liquid spilling over engine parts and creating some fume. I suddenly turned the engine off, wait for half an hour, put some water, checked temperature (it was ok) and drove for 7 squares to go home. After 2 hours with the engine turned off, I made a test (pushing down the odometer reset button and turning the key to RUN. The self test started and the code showed was 1331. I don't know this code. I observed that, after the temperature problem, when we put the key to RUN position, the MIL light (or check engine light) flashes for 10 times; after it remains on. I really don't know if the procedures made during tests at maintenance shop could create some bad PCM operation that could generate cooling or pressure problems. Regards
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Old 30 Oct 2014, 12:31 pm
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Default Re: Sensor problems

It would seem you have 2 unrelated problems.
Best way to find why the engine light is lit is with a scan tool - but this also shows problem codes:
How to retrieve fault codes.
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Old 30 Oct 2014, 07:27 pm
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Default Re: Sensor problems

Pushing the odometer reset button only performs a test of the dials and odometer numbers. It doesn't give a readout of the fault codes. Use the lick QSD posted above to find out the trouble codes your computer has stored.
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Old 30 Oct 2014, 08:32 pm
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Default Re: Sensor problems

Did the radiator fan come on when it started to overheat?
The MIL light (or check engine light) flashing for 10 times could possibly indicate a short on one of the sensors. I would immediately stop driving that Pt Cruiser until the problem is fixed. You might have a bad sensor that is telling the PCM not to turn on the radiator fan. Your problems might be related.
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Old 30 Oct 2014, 11:41 pm
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Default Re: Sensor problems

Time for me to go to bed I thought this thread said senior problems?

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engine codes, pcm

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