What *PIDs to log for cold start stutter?

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06-04-2005, 10:37 AM

Scalpel

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What *PIDs to log for cold start stutter?

I need to know what values to log with HPT to fix a cold start stutter I have.

I get no SES codes, etc so I'd like to be able to log all the parameters that could lead me too the fix to this issue.

Thanks.

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06-05-2005, 06:21 PM

P Mack

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IAC position, desired airflow, dynamic airflow, maf, spark advance are what i would start with. Also try monitoring the misfires for each cylinder under engine diagnostics.