MY 2009 CAPRICE RPM METER GO UP AND DOWN

10

Asked by GuruTS62L Jul 01, 2018 at 04:48 AM about the 2011 Chevrolet Caprice Detective Sedan RWD

Question type: Maintenance & Repair

2009 CAPRICE RPM METER GO UP AND DOWN , BLACK SMOKE IS
COMMING

4 Answers
8,810

BritishTech77 answered 6 years ago

Thats kind of hard to say. Is car idle fluctuating? Or steady and is check engine light on?

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8,810

BritishTech77 answered 6 years ago

Tom's vould be right! If your using an aftermarket 02 it will send wrong info to pcm causing less more to fuel ratio. Thus allowing car to fluctuate. But best way to know for sure is to do a live data from an Obd2. Shows everything like fuel, air ratio, timing etc. So your not going in blind.

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