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

removing ECM

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Old Jul 15, 2004 | 03:43 AM
  #1  
Blake's Avatar
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From: okotoks Alberta
Car: 1991 Camaro RS
Engine: 406ci
Transmission: T-56 LT1
Axle/Gears: 3.42
removing ECM

hey guys, did a search, didn't find anythign right away however I searched at 1 30am in the morning, so i thought i'd ask. I have a 91 V6 RS. taking out motor and putting in a carbed 406. by the sounds of it, all gauges will still work. the special coded key thing might be an issue, and I have to ground out my TCC? also my electric speedo needs a special device to read foram a mechanical speedo tranny.


but anywho, I took off the panel under where the passanger feet go. and noticed two silver boxes there. so i'm taking one of them is the ECM/ which one is which? and what is the other one? do I cut, or disconect? rewire what? easiest to take off dash?


thanks a bunch

cheers

blake
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Old Jul 15, 2004 | 09:21 PM
  #2  
CaptPicardsZ28's Avatar
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From: ready room
Car: NCC-1701-D (docked in AZ)
Engine: impulse drive
Transmission: fusion reactors
Axle/Gears: Rescued from the Borg by my crew
Re: removing ECM

Originally posted by Blake
hey guys, did a search, didn't find anythign right away however I searched at 1 30am in the morning, so i thought i'd ask. I have a 91 V6 RS. taking out motor and putting in a carbed 406. by the sounds of it, all gauges will still work. the special coded key thing might be an issue, and I have to ground out my TCC? also my electric speedo needs a special device to read foram a mechanical speedo tranny.


but anywho, I took off the panel under where the passanger feet go. and noticed two silver boxes there. so i'm taking one of them is the ECM/ which one is which? and what is the other one? do I cut, or disconect? rewire what? easiest to take off dash?


thanks a bunch

cheers

blake
I believe the bigger box is the ecm and has more connectors. I think the smaller one is the ESC. Does the smaller one piggy back the big one?
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Old Jul 15, 2004 | 09:44 PM
  #3  
Blake's Avatar
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From: okotoks Alberta
Car: 1991 Camaro RS
Engine: 406ci
Transmission: T-56 LT1
Axle/Gears: 3.42
no, they are about 5 inches apart, smaller one is closer to the middle of the car
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Old Jul 16, 2004 | 01:52 PM
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CaptPicardsZ28's Avatar
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From: ready room
Car: NCC-1701-D (docked in AZ)
Engine: impulse drive
Transmission: fusion reactors
Axle/Gears: Rescued from the Borg by my crew
Originally posted by Blake
no, they are about 5 inches apart, smaller one is closer to the middle of the car
I believe they are what I said they are. The larger one for ecm. I am not familiar with 90-92 models. I cant tell you whether to disconnect the smaller one or not. I disconnected mine tho.
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Old Jul 17, 2004 | 08:32 PM
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Blake's Avatar
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From: okotoks Alberta
Car: 1991 Camaro RS
Engine: 406ci
Transmission: T-56 LT1
Axle/Gears: 3.42
hey took some pix of what i think is the ECM, also you can see a picture of my finger pointing, and thas roughly to the other metal box which is behind the dash, whats that? leave it?

also another pic of me holding a empty female connection, possibly for the floor lights, for when the doors are opened? because I know my car doesn't have those, if it is, if I put the proper light and male connector in, should it work? or would the it not be rigged up and fused up for use?

cheers

blake




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Old Jul 17, 2004 | 09:08 PM
  #6  
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From: conway, s.c.
Car: 1989 Iroc-Z
Engine: 5.7L TPI
Transmission: 700R4
If it has one connector in the side of it, it is the Diagnostic Energy Reserve Module (DERM). If it has two connectors in the top of it, it is the Vehicle Speed Sensor (VSS) buffer box.
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