misfire number 4 cylinder 3.1 multi port vin(t)

Asked by Feb 01, 2016 at 06:52 PM about the 1993 Buick Regal Custom Coupe FWD

Question type: Maintenance & Repair

#4Cyl. mifire has fire to plug,have
replaced the injector to thet cyl. and also
coilpack, icm,sparkplug and sparkplug
wires

2 Answers

76,235

Check the compression. May be a bad cylinder.

1 of 1 people found this helpful.
410

Or pcm monitor fucked ..

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