Electronics Need help wiring something up? Thinking of adding an electrical component to your car? Need help troubleshooting that wiring glitch?

So I was about to take the ECM out of my car....

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Old Sep 26, 2005 | 07:04 PM
  #1  
BigDreams92's Avatar
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From: Middle GA
Car: 1992 RS
Engine: Vortec Headed 383 9.6:1
Transmission: TKO600
Axle/Gears: 10 Bolt Posi 3.73
So I was about to take the ECM out of my car....

And I just wanted to double check a few things before I went through with it. The car was a 92 RS V6 5spd, I have went the way of many with a 350 and carb and mechanically, I'd say I'm about 80% done, still have some bolts and a rear end to swap in etc etc.

I just want to verify a couple things I haven't X'd off my list.

1. VATS! No ECM = No Pass key decoder problems right? Since I believe all it does is enable the use of the injectors, if it's not there it isn't going to curse me from the grave is it?

2. Electric cooling fan, just wire it up to a 12v switch?

3. Fuel pump, again with the 12v switch? I allready have a regulator and know about the return lines keeping the pump from over heating and all that jazz, but can I just run a switch the pump itself or does it need to run from the relay or something else I may have missed?


and keep your fingers crossed for me! This is my first big project and I've done it all myself with lots of headaches and money spent but I gotta get "r" done!!!!
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Old Sep 26, 2005 | 09:18 PM
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From: conway, s.c.
Car: 1989 Iroc-Z
Engine: 5.7L TPI
Transmission: 700R4
VATS = you will also have to bypass the starter enable relay under the dash on the drivers side = no power to starter when you turn key.
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Old Sep 26, 2005 | 11:15 PM
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From: Middle GA
Car: 1992 RS
Engine: Vortec Headed 383 9.6:1
Transmission: TKO600
Axle/Gears: 10 Bolt Posi 3.73
Thanks for the reply Trickster, now I know there's probably a good and a bad way to going about doing that, could you help me out with the good way?
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Old Sep 26, 2005 | 11:22 PM
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From: conway, s.c.
Car: 1989 Iroc-Z
Engine: 5.7L TPI
Transmission: 700R4
Yes there is a good way of doing this, take pins "A" & "E" of the starter enable relay and splice them together.
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Old Sep 27, 2005 | 11:18 AM
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From: Rapid City, SD
Car: 89 Camaro RS/SS
Engine: LT1
Transmission: T-56
Axle/Gears: 10 bolt with 3.42
Will this work with my car? I have an '89 with a v6. I removed the v6 (everything) and am putting an LT1 in. Instead of having my LT1 ecm reprogrammed can i just splice these two wires together? Does this just make the computer think there is no VATS?
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Old Sep 27, 2005 | 12:24 PM
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Same issue, where is the starter enable relay located?

Matt
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Old Sep 27, 2005 | 02:36 PM
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From: conway, s.c.
Car: 1989 Iroc-Z
Engine: 5.7L TPI
Transmission: 700R4
Originally posted by CamaroKid89RS
Will this work with my car? I have an '89 with a v6. I removed the v6 (everything) and am putting an LT1 in. Instead of having my LT1 ecm reprogrammed can i just splice these two wires together? Does this just make the computer think there is no VATS?
In your case this would not work because the LT1 computer will still be looking for the VATS unless you reprogram it. The individual in the original post has removed the ECM from his car and wondering what else he needed to do to make the car start.
For 89 camaroIROCZ, on your car the starter enable relay is mounted behind the left kick panel below the hood release. It is usually hidden behind some black sticky insulation tape.
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Old Sep 27, 2005 | 07:05 PM
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From: Middle GA
Car: 1992 RS
Engine: Vortec Headed 383 9.6:1
Transmission: TKO600
Axle/Gears: 10 Bolt Posi 3.73
Thanks for the info! Not the best weather today and a late night at work so no chance to try to do it tonight. Hopefully some better luck tommorow. Off to search what this thing looks like and a diagram so I can see what pins are what
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Old Sep 30, 2005 | 03:59 PM
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From: Middle GA
Car: 1992 RS
Engine: Vortec Headed 383 9.6:1
Transmission: TKO600
Axle/Gears: 10 Bolt Posi 3.73
Is this what I'm looking for? If so do I splice on the column side or the computer side, if it even matters?
Attached Thumbnails So I was about to take the ECM out of my car....-starterenablerelay.jpg  
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Old Sep 30, 2005 | 09:11 PM
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From: conway, s.c.
Car: 1989 Iroc-Z
Engine: 5.7L TPI
Transmission: 700R4
I can't really see what you are pointing too in that picture because it is really dark, however I can see the yellow and green wires in the background. You need to splice the yellow wire from pin "E" to the green wire from pin "A" of the starter enable relay to lock out the VATS for the car to start. You can splice the wire right there at the relay connector. Those wires don't go to the ECM anyway.
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Old Sep 30, 2005 | 09:58 PM
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From: Middle GA
Car: 1992 RS
Engine: Vortec Headed 383 9.6:1
Transmission: TKO600
Axle/Gears: 10 Bolt Posi 3.73
Sorry the picture didn't turn out as well as I would have liked.

I was hoping I was holding the starter enable relay, but I guess not Just went back and looked at it and it's labled D-P for pins. As for the green and yellow wires to the right of what I'm holding, I'm assuming those are the ones you are talking about, they go into another relay mounted on the plastic covering of the steering shaft and the pins are labled D-P as well. So now I'm just kind of scratching my head

While I got ya though, do you happen to know where the fuse block draws its' power from?
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Old Sep 30, 2005 | 11:42 PM
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From: conway, s.c.
Car: 1989 Iroc-Z
Engine: 5.7L TPI
Transmission: 700R4
Your fuse panel gets its power from two different locations. The "ACC", "TAIL", & "LID" fuse get their power straight off the battery through fusible link "A" which goes from the starter solenoid to the fuse block. The other fuses get their power through the ignition switch which gets its power from fusible link "B" which goes from the starter solenoid to the ignition switch. Here is a picture of what the starter enable relay looks like, don't pay attention to the two wires in the middle. On your car they are a different color, one is pink and the other one is black/yellow. The ones that you want are the large yellow wire and the large green wire that are on the ends
Attached Thumbnails So I was about to take the ECM out of my car....-att2.jpg  
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Old Oct 4, 2005 | 11:53 AM
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89 CamaroIROCZ's Avatar
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From: Mickleton, NJ USA
Trickster, am I removing the relay? I found it in my car no prob, i'll splice the wires together, what are the middle two wires left doing? Anything?

Matt
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Old Oct 4, 2005 | 06:03 PM
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From: conway, s.c.
Car: 1989 Iroc-Z
Engine: 5.7L TPI
Transmission: 700R4
The small yellow wire is one that branches off the large yellow one from the ignition switch. You can just cap the end of it and stow it away somewhere. The small green one would go to the VATS control module and is no longer needed although you could just cap it and also just stow it away. If you want to you can remove the relay and use it for trading material.
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Old Oct 4, 2005 | 09:20 PM
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89 CamaroIROCZ's Avatar
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From: Mickleton, NJ USA
Dude thanks for your help man!! Greatly appreciated...

Matt
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Old Oct 9, 2005 | 01:55 AM
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From: Middle GA
Car: 1992 RS
Engine: Vortec Headed 383 9.6:1
Transmission: TKO600
Axle/Gears: 10 Bolt Posi 3.73
Indeed, thank you for your help I never found the darn thing, but I did run a cool looking hotwire to the starter and it works just fine When I have time to pull the dash more apart I may go back and do it the right way, but for now I just need the car running.
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