I have a 4.7 v8 Jeep larado and it's giving me lots of coses

Asked by Feb 29, 2016 at 11:05 PM about the 2002 Jeep Grand Cherokee Laredo 4WD

Question type: Maintenance & Repair

po172,po138,po141,po300,po302,po304 had all the
codes checked and replaced all the coil and plugs
also the oil and 1 o2 sensor and it still gives same
codes I did find a long ground in behind my block not
sure if it matters also have good compression Amy
ideas o n why it still misfires

2 Answers

40

Mass air flow sensor or cam shaft sensor. I almost guarantee it's one or the other.

I'm not sure I have a mass air sensor

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