Question about 2003 Chevrolet Impala

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Chevy impala2002 I have a code P0300 and P0171 on my impalka 2002 3.4 v6

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  • teadubs Feb 18, 2009

    '98 Pontiac Bonneville with p0300 and p0171. Car's engine starts to stutter around 45 and 55 mph. Hearing a clicking noise when the car is car is turned on. Any help would be great

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I had the same problem with code p0300 and p0171..i fix it!!it was a vacuum hose on intake manifold ,,,had a hole on it...replace it with a new one,,,stutter and shakin is gone..

Posted on Apr 06, 2013

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A P0300 code is a random cylinder misfire code and could be caused by a bad plug, plug wire, or fuel injector. The P0171 is bank one o2 sensor is reading lean w/ both of these combined could mean a vacumm leak.. Hope this helps.

Posted on Nov 28, 2008

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Have code P0001, P0171, & P0300. Need to know


P0300 Random/Multiple Cylinder Misfire Detected
P0171 System too Lean (Bank 1) - Read Our Article On Oxygen Sensor Codes For Help With This Generic Check Engine Light Code
i could only find the 2 codes for you
try here
www.engine-light-help.com
what kind of shape are your plug wires in ?

Jan 14, 2010 | 2005 Chevrolet Suburban

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