wiring and emissions
Thread Starter
Joined: Sep 2005
Posts: 871
Likes: 4
From: Yreka, in the State of Jefferson
Car: 1991 red Z/28
Engine: 350 TPI
Transmission: T5 swap
Axle/Gears: 3.42
wiring and emissions
Is this the right diriveter valve for my 91 Z/28 350? I noticed in pics that most of those d valves have a perforated box facing the front of the car, but mine doesn't have one.

Also these wires. I think the 3 red wires (2 are connected) go to the starter?
The white connector goes to the knock sensor, The thick purple wire thats cut I have no clue and the last connector that looks a little burned and is patially missing I thought went to the 02 sensor, but I noticed my exhaust manifolds and the hole for the 02 sensor is on the left one. Are my manifolds the right ones for my year Camaro?



I did this thread all over again because I wasnt getting any traffic at the TPI forum
Also these wires. I think the 3 red wires (2 are connected) go to the starter?
The white connector goes to the knock sensor, The thick purple wire thats cut I have no clue and the last connector that looks a little burned and is patially missing I thought went to the 02 sensor, but I noticed my exhaust manifolds and the hole for the 02 sensor is on the left one. Are my manifolds the right ones for my year Camaro?
I did this thread all over again because I wasnt getting any traffic at the TPI forum
Thread Starter
Joined: Sep 2005
Posts: 871
Likes: 4
From: Yreka, in the State of Jefferson
Car: 1991 red Z/28
Engine: 350 TPI
Transmission: T5 swap
Axle/Gears: 3.42
Re: wiring and emissions
I figured that the SoCal forum would be the busiest so thats why I moved it to here.
It took me over an hour to redo it to here as I have a VERY slow computer. LOL IF a moderator wants to move it general engine forum, he can do it quicker than I can
Hopefully I'll be getting a new computer sometime later this year
It took me over an hour to redo it to here as I have a VERY slow computer. LOL IF a moderator wants to move it general engine forum, he can do it quicker than I can
Hopefully I'll be getting a new computer sometime later this year
Last edited by Duane's 91 Z/28; May 20, 2010 at 11:23 PM.
Re: wiring and emissions
HEY, TRIED TO LOOKING AT THE HARNESS ON OUR CAR AND COULD NOT SEE IT WELL ENOUGH BUT I CAN TELL YOU THE O2 SENSOR IS IN THE DRIVERS SIDE MANIFOLD. YOU MAY WANT TO TRY KRAGENS WEB SITE MY BROTHER INLAW FOUND SOME WIRING DIAGRAMS THERE IF I CAN SEND THEM TO YOU I WILL.
Last edited by STEWARDORNG; May 21, 2010 at 01:18 PM.
Re: wiring and emissions
IMAGE_167-1.jpg?t=1274458715
Thread Starter
Joined: Sep 2005
Posts: 871
Likes: 4
From: Yreka, in the State of Jefferson
Car: 1991 red Z/28
Engine: 350 TPI
Transmission: T5 swap
Axle/Gears: 3.42
Re: wiring and emissions
Cool, thanks guys. Big help
Now to figure out the D valve.
Now to figure out the D valve. Trending Topics
Joined: Mar 2000
Posts: 5,703
Likes: 132
From: Orange, CA
Car: '90 Trans Am-12.45@110.71
Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Re: wiring and emissions
That looks like the right D valve, it just doesn't have the cover on it.
Thread Starter
Joined: Sep 2005
Posts: 871
Likes: 4
From: Yreka, in the State of Jefferson
Car: 1991 red Z/28
Engine: 350 TPI
Transmission: T5 swap
Axle/Gears: 3.42
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