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Old 30 May 2009, 06:08 am
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Default Re: Rough Idle And No Codes

Quote:
Originally Posted by scatgo View Post
So what might be cause the idle problem and whats up with the PCM?

Thanks for any help.
Not sure of your question. The PCM doesn't give a code for everything that ever happens. Some sensor somewhere has to see a problem before sending a signal to the PCM to set a code and apparently whatever you problem is, is not doing that.

Some owners have had a dirty/malfunctioning IAC (Idle Air Controller) which would cause a rough idle. It can be taken off and cleaned or just replaced.

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