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2006 Chevrolet HHR LS 2.2L Excessive Emissions, Poor Idle Quality, Misfire, MIL Lamp on
Posted to GM Driveability on 4/30/2012 12 Replies

This thing is driving me crazy.I think its the computer but Im not convinced.This thing will misfire on cyls,1-4 and next time it is 2-3.Heres the crazy part.When you start it and it doesnt matter hot or cold,if it misses it wont stop till you shut off and res...

FIX posted 6/12/2012

12 Replies Received (View Replies)

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car Vehicle Data

2006 Chevrolet HHR LS

VIN 3GNDA13D66
Engine2.2 L / 4 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, Poor Idle Quality, Misfire, Mil Lamp On
OccursIntermittently

Trouble Codes

P0300Multiple Misfire Detected