1990 firbird v6 3.1 oxygen sensor test wire

1990 PONTIAC FIREBIRD
160,000 MILES • 6 CYL • 2WD • AUTOMATIC
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FLAMENBIRD87
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Does anyone know what wire on the o2 sensore sends the signal to the ecm?i need to text mine
thanks
Jan 5, 2011 at 10:09 PM
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RASMATAZ
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The purple wire
Jan 5, 2011 at 10:20 PM
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FLAMENBIRD87
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I just checked my 02 sensore it is a single wire (blk) I just replaced it and it seems the car is running better,but it still idles a little rough and the rpm's jump a little between 700 and 750 at idle.also I notice vibration at idle,could this be due to a motor mount?
Jan 6, 2011 at 10:46 PM
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