Question about 2003 Chevrolet Impala
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
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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Posted on Jan 02, 2017
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