Question about 2001 Chevrolet Impala
Two possible issues. One, Your mass airflow sensor could be unplugged, dirty, or malfunctioning. Two, you could have a clogged catalytic converter. There are cleaners you can use, but generally you need to replace the catalytic converters.
Posted on Apr 13, 2014
Testimonial: "thanks for helping , i did unhook the egr tube just to see if the exhaust had back pressure but no change"
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Posted on Jan 02, 2017
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