Questions & Answers for: impala p0401

...impala 2002. we need info on following codes: P0108, P0128, P 0341, P 0401, P 0420, P 1480, and P 1481. John p0108 map curcuit high input, p0128 coolant temperature below thermstat regulating ...

i have a 2003 chevy impala an it idles very high, i found 3 codes that are p0113,p0401,p1639, can anyone help me understand whats going on the choke is stuck on your intake.

diagnostic code p0401 Hi Rad,The EGR passage to the intake gets clogged up that's why your seeing this error code. It just need to be cleaned and it should clear you check engine light.I hope that

What do the OBDII trouble codes P0401 & P0404 mean with 2001 Chevy Impala? P0401 Exhaust Gas Recirculation Flow Insufficient Detected P0404 Exhaust Gas Recirculation Circuit Range/Performance

...a 2001 Chevy Impala? P0401 usually means for most vehicles Exhaust Gas Recirculation Flow Insufficient Detected P0404 usually means for most vehicles Exhaust Gas Recirculation Circuit ...

What is the meaning of codes P0401 and P0301 the P0401 code has to do with your exhaust! Could be caused from sensor to clogged exhaust! The P0301, I believe is misfire, cylinder #1 P0401 = Fixing EGR

...P0401. I took it to a shop I'd never been to because they were supposed to be cheaper. They replaced my EGR valve and wiring, they said the old one had been wired incorrectly somehow. 20 miles down ...

...Impala LS 3.8 with a recurring P0401 insufficient egr flow code. Originally had pintle position error code. Pintle was sticking. Replaced egr valve, no more pintle code, but soon set P0401 code. ...