Need help fast....ECU compatibility
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Joined: Jul 2003
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From: Markham
Car: 1990 Camaro
Engine: 355ci
Transmission: TKO-600 5 speed
Axle/Gears: 3.73 10 bolt
Need help fast....ECU compatibility
I have a 1990 5.7L camaro. Will the ecu from any (so 87-92) 350 camaro/firebird work in my car?
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From: Dallas, TX area
Car: 91 Formula WS6 (Black, T-Tops)
Engine: 383 MiniRam (529 HP, 519 TQ - DD2K)
Transmission: Built '97 T56, Pro 5.0, CF-DF
Axle/Gears: 4.11 posi Ford 9"
As long as it is an ECM that is a "730" (last 3 digits of the part number) from a TPI based car, you should be fine.
Where you'll run into problems is with the memcal (chip/prom) inside the ECM. The 1990-92 Camaro (and Firebirds) were all speed density systems, earlier years were MAF based. You can not use a MAF memcal (even if you burn your own proms) in a Speed Density car (I have personal verification! Doesn't work)
So you'll have to have a memcal/prom from a 1990-92 350 for the thing to run. You'll also have to have a 1990-92 memcal even if you are burning your own proms for it due to the knock sensor circuitry (I screwed up once and proved this to be true). A 1990 350 memcal is what you need if you are not burning your own proms.
Does this answer your questions?
- Vern
Where you'll run into problems is with the memcal (chip/prom) inside the ECM. The 1990-92 Camaro (and Firebirds) were all speed density systems, earlier years were MAF based. You can not use a MAF memcal (even if you burn your own proms) in a Speed Density car (I have personal verification! Doesn't work)
So you'll have to have a memcal/prom from a 1990-92 350 for the thing to run. You'll also have to have a 1990-92 memcal even if you are burning your own proms for it due to the knock sensor circuitry (I screwed up once and proved this to be true). A 1990 350 memcal is what you need if you are not burning your own proms.
Does this answer your questions?
- Vern
Just to note, the 86-89 ECM's are a different setup completely. The p/n for those ends in 165 and is not compatable with the 730 ECM. The 85 TPI ecm is different from both of those, and uses a slower ALDL buad rate as well. 
