ThunderZ28

iTrader: (7)

I am looking for a Wiring schematic for the upstream O2 sensors on an 01 vette..
anybody have access to this or know of a place on the internet where I can take a look at this


looking for the pin/wiring for the connectors and to which one they need to hook up to on a aftermarket O2 sensor..
Thanks
Daniel

jeremymcclure

now by upstream im guessing you meen the ones by the manifold.

Left Front
A. O2 LOW - TAN/WHT - PIN 29 on PCM
B. O2 HI - PPL/WHT - PIN 69 on PCM
C. - - BLK - Ground
D. + -BRN - To O2 fuse

Right Front
A. O2 LOW - TAN - PIN 26 on PCM
B. O2 HI - PPL - PIN 66 on PCM
C. - - BLK - Ground
D. + - BRN - To O2 fuse

ThunderZ28

iTrader: (7)

thanks
thats what I was looking for

jeremymcclure

awesome im glad that helped.

pays to have a copy of mitchell on demand handy

ThunderZ28

iTrader: (7)

ok now the guy is telling me he needs the back O2 wires
can you help me out there?

jeremymcclure

of coarse. lol

here are the rear ones


Left Rear
A. O2 LOW - TAN/WHT - PIN 28 on PCM
B. O2 HI - PPL/WHT - PIN 68 on PCM
C. - - BLK - Ground
D. + -BRN - To O2 fuse

Right Rear
A. O2 LOW - TAN - PIN 25 on PCM
B. O2 HI - PPL - PIN 65 on PCM
C. - - BLK - Ground
D. + - BRN - To O2 fuse


GM likes patterns when they wire thier cars

ThunderZ28

iTrader: (7)

thanks