Help please

Asked by Mar 31, 2017 at 11:08 PM about the 1999 Pontiac Grand Am 4 Dr SE Sedan

Question type: Maintenance & Repair

Ok so for the past couple of weeks i
been getting my car worked on so i
had the codes read it said o2 misfire
something like that but in addition to
that i got a mass air flow censor
ignition coil and a coil pack and still
the same thing cutting off bucking a
little bit idle wild and crazy idk plrase
help

3 Answers

119,645

A miss fire could be several things. Faulty spark plug or wire, Faulty coil (pack), Faulty oxygen sensor(s), Faulty fuel injector, Burned exhaust valve, Faulty catalytic converter(s),, Poor compression, Defective computer, But you have done several of these parts already, I would check the fuel pump pressure and do a compression check, change the plugs and wires...

1 people found this helpful.

Mark and i just got a tune up a few week back but when the reader read it still said spark plug n wires so which do you think is the most important im having somebody look at it today hopefully he can fix it

119,645

Really could be both...

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