2001 Oldsmobile Alero 4 cyl Front Wheel Drive Automatic 145k miles
New plugs, wires, swaped coils. Substututed known good module, fuel filter, compression and fuel presure good, injectors ohm the same, with out A/C on car runs flawless, w/AC on at idle scanner reads missfire on #4 cycl turn off AC missfire gone, no codes set
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Friday, June 25th, 2010 AT 9:47 PM