Mechanics

RUNS BUT STALLS AT A STOP

1990 Pontiac Firebird • V8 2WD Automatic •

Have a 1990 firbird formula 5.0 tbi, 116000 miles, car starts fine but tach starts to jump like crazy, sputters some, when taking the car for a drive it is fine, but when I come to a stop it dies on me, start it agian and take off all is good until the next stop, then it dies again, under power it runs fine but when youcome to a stop it acts up and wont run or just stops, I have changed the map sensor, 02 sensor, any help would be great, thanks
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Gusdog90
February 26, 2011.




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