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1990 Pontiac Firebird Repair Question


Topics covered: Sensor, Rpm, Vibration.
Mileage: 160,000 miles.

Asked on January 5, 2011

1990 firbird v6 3.1 oxygen sensor test wire

Does anyone know what wire on the o2 sensore sends the signal to the ecm?i need to text mine
thanks
Avatar Asked by flamenbird87

Answer

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Replied on January 5, 2011

The purple wire

Tiny Answered by rasmataz
68 questions asked
Replied on January 6, 2011

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?

Tiny Response from flamenbird87
9 questions asked
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