c207 splicing and painless info needed
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Joined: Oct 2003
Posts: 942
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From: LaGrange (10min from Poughkeepsie), NY
Car: 1992 Camaro RS - not real slow anymore...
Engine: SPDC 360 MAF EFI /w a Holley Stealth Ram
Transmission: T5 untill it blows up from to much torque
Axle/Gears: Ford 9" /w auburn pro & 3.89's
c207 splicing and painless info needed
Alright, here is my cituation:
My 92 camaro rs was orrigionally equiped with a 305TBI with a t5 and all the accesories (AC, Power everything, cruise, etc).
I swapped in a 350 with a stealth ram on top and bought the painless wiring #60202 (extra length 86-89 maf tpi). I chopped out the old c207 connector (Connection under passenger side dash) and wires for it going to the old TBI harness. Here is my big situation...
I now understand that the 86-89 tpi c207 connectors are pinned differently than the 92 tbi's. Also, any connector view diagram of this connecter has been extremely vague. If someone here has done this, would you mind giving me precise splicing instructions?
Here are some of my basic and simply questions or requests:
1. Does the tan/bk fuel pump wire on the painless harness connect to the c207 connector or elsewhere.?
2. What series circuit or connecter should the pink/bk ignition wire from the ecm be connected to?
3. What should be done with the park neutral safety switch wires (colors are orange/bk and bk/white)?
4. Since I have a Holley Stealth Ram and no longer need the CIJ(cold start injector) or CSW (cold start switch), what should be down with these wires?
5. I need specific pinouts from the c207 with a 92 305 tbi and an 89 tpi maf. I don't understand the differences quite yet.
6. Where do the wires at the c207 connector come from? I wish there was a wiring diagram of the damn thing and wires instead of brief connector views.
7. If I am lucky enough to have somebody read this post who has done a similar swap, please post what you did!
Well, thank you for taking the time for reading this post. Any input would help me out.
My 92 camaro rs was orrigionally equiped with a 305TBI with a t5 and all the accesories (AC, Power everything, cruise, etc).
I swapped in a 350 with a stealth ram on top and bought the painless wiring #60202 (extra length 86-89 maf tpi). I chopped out the old c207 connector (Connection under passenger side dash) and wires for it going to the old TBI harness. Here is my big situation...
I now understand that the 86-89 tpi c207 connectors are pinned differently than the 92 tbi's. Also, any connector view diagram of this connecter has been extremely vague. If someone here has done this, would you mind giving me precise splicing instructions?
Here are some of my basic and simply questions or requests:
1. Does the tan/bk fuel pump wire on the painless harness connect to the c207 connector or elsewhere.?
2. What series circuit or connecter should the pink/bk ignition wire from the ecm be connected to?
3. What should be done with the park neutral safety switch wires (colors are orange/bk and bk/white)?
4. Since I have a Holley Stealth Ram and no longer need the CIJ(cold start injector) or CSW (cold start switch), what should be down with these wires?
5. I need specific pinouts from the c207 with a 92 305 tbi and an 89 tpi maf. I don't understand the differences quite yet.
6. Where do the wires at the c207 connector come from? I wish there was a wiring diagram of the damn thing and wires instead of brief connector views.
7. If I am lucky enough to have somebody read this post who has done a similar swap, please post what you did!
Well, thank you for taking the time for reading this post. Any input would help me out.
Thread Starter
Senior Member
Joined: Oct 2003
Posts: 942
Likes: 0
From: LaGrange (10min from Poughkeepsie), NY
Car: 1992 Camaro RS - not real slow anymore...
Engine: SPDC 360 MAF EFI /w a Holley Stealth Ram
Transmission: T5 untill it blows up from to much torque
Axle/Gears: Ford 9" /w auburn pro & 3.89's
Ok, let me try and rephrase this since I'm not getting any responses... Lets say the 92 v8 tbi camaro is car 1 and that the 89 tpi maf is car 2. Car 1 and car 2 have different c207 pinouts. Now that we have established this, the c207 connector has two sides (or connections). The left side goes to some instrument panel and ALDL grounds while the right side may splice into the engine harness and run to a sensor.
So, just repinning the "right" side isn't going to get the job done. Could the left side of this connector possibly be pinned the same for all years to save production costs? -I dunno. But if it differs from year to year, how would one understand what to splice if there is not a wiring digram of the c207 connector available? There are only pinouts!
I hope whoever is reading this has a greater understanding of what I'm trying to accomplish. Only other wiring task that must be done after this one would be the c100 bulk head connector. I'm trying to get this project done as soon as possible, so again, please help me.
PS: I even tryed calling the "painless help line." ...And that is why I'm posting here. The so called "technician" knew less than me, a first year automotive student at Suny Morrisville. He said he can't help me (even with a wiring diagram) and has no idea what a c207 connector is and why any other wires would be spliced into the harness besides ignition, grounds, vats, and the fuel pump. So if your debating on calling painless for help, save yourself from the "pain."
So, just repinning the "right" side isn't going to get the job done. Could the left side of this connector possibly be pinned the same for all years to save production costs? -I dunno. But if it differs from year to year, how would one understand what to splice if there is not a wiring digram of the c207 connector available? There are only pinouts!
I hope whoever is reading this has a greater understanding of what I'm trying to accomplish. Only other wiring task that must be done after this one would be the c100 bulk head connector. I'm trying to get this project done as soon as possible, so again, please help me.

PS: I even tryed calling the "painless help line." ...And that is why I'm posting here. The so called "technician" knew less than me, a first year automotive student at Suny Morrisville. He said he can't help me (even with a wiring diagram) and has no idea what a c207 connector is and why any other wires would be spliced into the harness besides ignition, grounds, vats, and the fuel pump. So if your debating on calling painless for help, save yourself from the "pain."
Last edited by Dirtbik3r; Dec 14, 2005 at 11:43 PM.
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Joined: Sep 2003
Posts: 6,127
Likes: 11
From: conway, s.c.
Car: 1989 Iroc-Z
Engine: 5.7L TPI
Transmission: 700R4
As promised, here is the C207 connector for the 92 camaro. Hope this and the one above will help you some. As you will notice, there are some differences between the two.
Thread Starter
Senior Member
Joined: Oct 2003
Posts: 942
Likes: 0
From: LaGrange (10min from Poughkeepsie), NY
Car: 1992 Camaro RS - not real slow anymore...
Engine: SPDC 360 MAF EFI /w a Holley Stealth Ram
Transmission: T5 untill it blows up from to much torque
Axle/Gears: Ford 9" /w auburn pro & 3.89's
Thanks for the help Trickster.
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