ecu diffrences?

Supra2NR · 04-04-2007, 10:21 PM

Does anyone know for sure
If there's any diffrence between the pre89
And post89 ecu's?

Cuz I am looking to buy a standalone for my mk3
And while I was looking at the catalog
They only had the ff:
93-98 twin turbo
93-98 non turbo
89-92 turbo

I was wondering why ddnt the pre89 cars have any available?
Can anybody enlighten me with this subject

plaaya69 · 04-04-2007, 10:30 PM

The difference is that the 1986.5-1988 Supras have the yellow plugs and the 1989-1992 Supras have gray plugs. If you have the 1986.5-1988 Style, then I would just switch the engine wiring harness and ecu from a 89-92 Supra that has gray plugs. Hope this helps.

dannydavi · 04-05-2007, 02:59 AM

sorry this isnt to help you out, but i did have a question on ECU's, i've been told several dif things, and my question is when i do my transmission swap from auto to manual will i need to change ecu? I would think not from what i have heard but there are those who say yes, any info helps, thanks.

dcrusupra · 04-05-2007, 04:55 AM

The auto ECU is fine with a manual transmission.

j3pz · 04-06-2007, 12:11 AM

ive also read there's a difference in the programming. lemme try to look for it real quick.

edit: nope im wrong, or atleast i cant find it.

Supra2NR · 04-08-2007, 05:35 PM

So I have no other options?
No jus cut the plugs and solder it into my harness?
No jerry-riggin the d@mn thing?

04-04-2007, 10:21 PM	#1
Supra2NR 1000whp postwhore Join Date: Apr 2006 Location: Chi-Town Posts: 1,643	ecu diffrences? Does anyone know for sure If there's any diffrence between the pre89 And post89 ecu's? Cuz I am looking to buy a standalone for my mk3 And while I was looking at the catalog They only had the ff: 93-98 twin turbo 93-98 non turbo 89-92 turbo I was wondering why ddnt the pre89 cars have any available? Can anybody enlighten me with this subject __________________ http://www.myspace.com/supra_2nr Into Bikes now,, apparently the supra couldnt kill me, so my zx6 might lol

04-04-2007, 10:30 PM	#2
plaaya69 12psi boost Join Date: Feb 2007 Location: Waukegan, IL Posts: 255	The difference is that the 1986.5-1988 Supras have the yellow plugs and the 1989-1992 Supras have gray plugs. If you have the 1986.5-1988 Style, then I would just switch the engine wiring harness and ecu from a 89-92 Supra that has gray plugs. Hope this helps. __________________ 1987 Toyota Supra Turbo-burgundy exterior w/gray interior+1987 Toyota Supra(N/A) light brown top,dark brown bottom w/light brown interior.

04-05-2007, 02:59 AM	#3
dannydavi 12psi boost Join Date: Mar 2007 Location: Sacramento, Ca Posts: 373	sorry this isnt to help you out, but i did have a question on ECU's, i've been told several dif things, and my question is when i do my transmission swap from auto to manual will i need to change ecu? I would think not from what i have heard but there are those who say yes, any info helps, thanks. __________________ '86.5 Supra - A/T - N/A - JDM Useful Sites: ToyoDIY.com ToyotaPart.com MKIIITSRM

04-05-2007, 04:55 AM	#4
dcrusupra 500whp yet? Join Date: Aug 2005 Location: Plantation, Fl. Posts: 1,052	The auto ECU is fine with a manual transmission. __________________ New Rebuild My CarDomain

04-06-2007, 12:11 AM	#5
j3pz 500whp yet? Join Date: Nov 2005 Location: Mechanicsville, MD, US of A, 20659 Posts: 1,060	ive also read there's a difference in the programming. lemme try to look for it real quick. edit: nope im wrong, or atleast i cant find it. __________________ 88 N/A w/ 5spd - stock - not running, bhg 87 turbo/targa w/ 5spd- fidanza light weight flywheel, new oem slave cylinder, apexi air filter, no ac and no heat Last edited by j3pz; 04-06-2007 at 12:22 AM.

04-08-2007, 05:35 PM	#6
Supra2NR 1000whp postwhore Join Date: Apr 2006 Location: Chi-Town Posts: 1,643	no way around? So I have no other options? No jus cut the plugs and solder it into my harness? No jerry-riggin the d@mn thing? __________________ http://www.myspace.com/supra_2nr Into Bikes now,, apparently the supra couldnt kill me, so my zx6 might lol