View Single Post
Old 01-05-2008, 01:21 PM   #16
Cliff8928
Moderator
 
Cliff8928's Avatar
 
Join Date: Nov 2004
Location: Long Grove, IL
Posts: 5,002
Cliff8928 is on a distinguished road
Send a message via ICQ to Cliff8928 Send a message via AIM to Cliff8928
The second (low reference) wire for the oxygen sensor is already there actually. You just need to locate the splice pack G102 which looks to be near the starter and remove the (only) tan wire and route it to the oxygen sensor. That tan wire goes to connector C2 pin 21 on the PCM of a '99 and '00.

The 2.4 never had a heated oxygen sensor, but if you wanted to add one you would just route the brown wire to pin E9 of the underhood junction block and the black ground wire through the P100 firewall grommet to the splice pack at G203 which is over by the blower motor!

It would probably do fine with the 1 wire sensor for all intents and purposes though.
__________________
Cliff Scott
2004 Alero GX w/sport pkg - Sold, living somewhere in WI now.
2011 Saab 9-5 Turbo4 M6
2004 Corvette Convertible M6
1994 Chevy Beretta - Quad4/M5
Cliff8928 is offline   Reply With Quote