ECU question

shiftysupra · 11-05-2008, 07:43 PM

i have an N/A harness and ecu for manual but it's a 92'.... so an 89+ not sure if it would work with an 88 engine...

sd88supra · 11-07-2008, 09:55 PM

I just got an N/A ECU off an '87. However, the letters 7M-GE are red as opposed to yellow like my original ECU. Mine has AE instead of AS like the one I took out. The one I took out is also slightly smaller in size. I've googled 1987 N/A ECU's and they're exactly like the one I just got. Makes me wonder if my ECU was the original to begin with.

Well, lets see what happens.

dieseltech24179 · 11-27-2008, 04:12 PM

hey guys sorry to but in but im having an ecu problem as well
when i bought my supra the guy said that when he bought it it had a wiring harness for an automatic 7mgte and the car is a manual 7mgte he replaced the wiring harness with the right one but idk if the ecu is the same and theres three of them in the car does anyone have the part number of the ecu from a 7mgte manual ecu...i wouldnt know how to tell them apart

Boombastic · 11-28-2008, 06:27 AM

For your ECU's I am pretty sure you only have to stick to either turbo or n/a, whether it is auto or manual wont make a difference the only thing, that was mentioned above, would be wiring your reverse lights in. As for the neutral start switch, if you always have the habit of depressing the clutch to start you wont have a problem leaving that wiring bit out, just bypass or "jump" it. I did an auto to manual swap on an 88 turbo and the only thing I had to do wiring wise was the reverse lights, everything else worked just as before. Good luck to you.

Boombastic · 11-28-2008, 06:30 AM

Quote:

Originally Posted by dieseltech24179

hey guys sorry to but in but im having an ecu problem as well
when i bought my supra the guy said that when he bought it it had a wiring harness for an automatic 7mgte and the car is a manual 7mgte he replaced the wiring harness with the right one but idk if the ecu is the same and theres three of them in the car does anyone have the part number of the ecu from a 7mgte manual ecu...i wouldnt know how to tell them apart

The ecu's aren't the same. The main ecu should be a silver box and should be the biggest one under the passenger side dash, should also have yellow connectors attached to it. The other comps are smaller and I think most of them are black. I would say that the auto ecu would work, but I am not sure since you said that the guy before replaced the harness to a standard harness. So having that done may mean that you need the standard ecu. Cheers.

11-07-2008, 09:55 PM	#2
sd88supra 3" Exhaust Join Date: Oct 2005 Location: San Diego, Ca Posts: 190	Update I just got an N/A ECU off an '87. However, the letters 7M-GE are red as opposed to yellow like my original ECU. Mine has AE instead of AS like the one I took out. The one I took out is also slightly smaller in size. I've googled 1987 N/A ECU's and they're exactly like the one I just got. Makes me wonder if my ECU was the original to begin with. Well, lets see what happens. __________________ -1987 5 spd N/A with TEMS: low miles! All stock with the exception of electric fans and an '89 front bumper, Yokohama 225/50/16 with stock rims. It's a mess and in the garage. -1987 5 spd Turbo with TEMS: miss-matched tires, needs lots of work, but it runs! Project car. -1988 N/A auto targa: all stock except 18" rims with Falken 265/35/18 in rear and 225/35/18 in front; daily driver.

11-27-2008, 04:12 PM	#3
dieseltech24179 3" Exhaust Join Date: Oct 2008 Location: vinton Posts: 57	ecu hey guys sorry to but in but im having an ecu problem as well when i bought my supra the guy said that when he bought it it had a wiring harness for an automatic 7mgte and the car is a manual 7mgte he replaced the wiring harness with the right one but idk if the ecu is the same and theres three of them in the car does anyone have the part number of the ecu from a 7mgte manual ecu...i wouldnt know how to tell them apart

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11-05-2008, 07:43 PM	#1
shiftysupra 3" Exhaust Join Date: Jan 2006 Location: Arizona Posts: 96	i have an N/A harness and ecu for manual but it's a 92'.... so an 89+ not sure if it would work with an 88 engine...

11-28-2008, 06:27 AM	#4
Boombastic 3" Exhaust Join Date: Jul 2007 Location: Maple Ridge, B.C. Posts: 96	For your ECU's I am pretty sure you only have to stick to either turbo or n/a, whether it is auto or manual wont make a difference the only thing, that was mentioned above, would be wiring your reverse lights in. As for the neutral start switch, if you always have the habit of depressing the clutch to start you wont have a problem leaving that wiring bit out, just bypass or "jump" it. I did an auto to manual swap on an 88 turbo and the only thing I had to do wiring wise was the reverse lights, everything else worked just as before. Good luck to you.