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Problems/Service/Maintenance Do you have problems with your new 2.0, 2.2, or 2.4L? What kind of service did you have done?

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Old 01-31-2011, 10:15 PM
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Pcm
How do you know if your pcm is going bad?
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Old 01-31-2011, 10:24 PM
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get a new one and see if your prob goes away lol
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Old 01-31-2011, 10:36 PM
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bump
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Old 01-31-2011, 10:51 PM
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you dont really you test out component that you think is faulty and all its wiring first
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Old 01-31-2011, 10:52 PM
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Will it throw codes?
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Old 01-31-2011, 10:56 PM
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from what ive dealt with they have, throws internal memory and eeprom codes
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Old 01-31-2011, 11:01 PM
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Well what do you think is happening here? https://www.cobaltss.net/forums/prob.../p0204-240281/
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Old 01-31-2011, 11:06 PM
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lol wow replaced all that?..and the injector harness?
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Old 01-31-2011, 11:11 PM
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Yeah was just trying to cover all my basis,going to swap pcm's with a friend i tuned tommorow and see if that fixes it
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Old 01-31-2011, 11:20 PM
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well if its intermittent and you replaced the harness check for voltage at the connector while cranking than i would possibly consider faulty pcm
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Old 01-31-2011, 11:26 PM
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Its weird that its not throwing any codes,the car idles like crap and just shuts off if i tap the gas
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Old 01-31-2011, 11:29 PM
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stalls out if you give it gas? you check your fuel pressure?
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Old 01-31-2011, 11:34 PM
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How would I go about doing that?
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Old 01-31-2011, 11:46 PM
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fuel pressure gauge at test port should see around 50-60 psi, lol you replaced all those parts and didnt check basics... these are known to have the injector harnes rub and short to ground at ac line bracket
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Old 02-02-2011, 09:08 PM
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Fuel pressure is good,now what?
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Old 02-02-2011, 11:47 PM
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did you end up swapin the ecm wit your buddy?
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Old 02-03-2011, 10:24 PM
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No,i wanted to check everything else before i did that
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