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post #1 of 7 (permalink) Old 09-10-2015, 02:49 PM Thread Starter
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Cobalt Ss Idle Problem

Hey so on occasions on a cold start my cobalt ss will idle very funny. The rpms jump up and down for like a couple of minutes. Any ideas on what causes this?

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post #2 of 7 (permalink) Old 09-10-2015, 04:16 PM
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What's the mileage, when was the last time you changed the plugs, when was the last time you cleaned the throttle body?

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post #3 of 7 (permalink) Old 09-10-2015, 04:19 PM Thread Starter
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57k everything hasnt been touched in her. Its weird cuz it rarely does it. Only started doing it after the intake was installed on it. The rpms just bounce between like 500-1600 rpm.

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WRX are as nice as they get.
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post #4 of 7 (permalink) Old 09-10-2015, 04:21 PM
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Sounds like an intake leak. Check and make sure it is well sealed.

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post #5 of 7 (permalink) Old 09-10-2015, 04:23 PM Thread Starter
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will do. I kinda have a feeling I know which hose might be causing the issue.

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WRX are as nice as they get.
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post #6 of 7 (permalink) Old 09-10-2015, 04:28 PM
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All air going into the plenum has to be metered by the MAF or the ECM will be screwed up.

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post #7 of 7 (permalink) Old 09-10-2015, 04:30 PM Thread Starter
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Just needs more BOV lol the solution for all turbo cars haha.

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