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1990 firbird V6 3.1 oxygen sensor test wire

Tiny
FLAMENBIRD87
  • MEMBER
  • 1990 PONTIAC FIREBIRD
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 160,000 MILES
Does anyone know what wire on the o2 sensore sends the signal to the ecm?I need to text mine
thanks
Wednesday, January 5th, 2011 AT 10:09 PM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
The purple wire
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Wednesday, January 5th, 2011 AT 10:20 PM
Tiny
FLAMENBIRD87
  • MEMBER
  • 45 POSTS
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?
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Thursday, January 6th, 2011 AT 10:46 PM

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