Need some ECU wiring help for an 83-84 - Toyota Nation Forum : Toyota Car and Truck Forums
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#1 Old 01-22-2007, 01:14 AM
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Need some ECU wiring help for an 83-84

This is my first post on this site. Here's the scoop. I got a hold of an 84 Cressida and took the engine and put it into my 88 4Runner. Everything went pretty good until it came to the wiring end of things. Basically the two smaller plugs to the ECU went right to the engine harness so I didn't mess with those. The one that I'm wondering about is the larger one with the relay power, AFM, B+ powers, OX, speed sensor, etc. In the process of removing that one from the body harness some, shall I say, wires got crossed. Can anybody tell me the layout of the larger ECU plug on an 83-84 (believe the ECU and harness are same for those), or direct me to a place who can, or send me a pic of yours, or a pic out of a reference book someone might have. I've tried this site http://www.cygnusx1.net/Supra/Librar...ion=FI&Page=75
for the 5MGE supras but noticed that some of the engine harness plugs were different.
If somebody can help me figure this out I can give you whatever parts you might want off of the car for free, I don't care what it is, tranny, hubs, rims, glass, rotors. Just pay the postage and for a box if needed. Basically that's the only way I can think of to thank somebody for leading me in the right direction so I can get this rig going again...Thanks

Dyl
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#2 Old 01-23-2007, 09:37 AM
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I've always wanted to do that swap, I have a 89 runner, 84 Cressida, 83 supra

ECU's changed yearly in these cars 84 is different from 83
also auto and manual, is the runner manual?

Try getting the Part# off the ECU and posting the question on
celicasupra.com. These guys are wizards with this stuff

Good Luck Gord
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#3 Old 01-28-2007, 10:44 PM
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The difference is whether you have the 5ME or 5MGE: the 5ME was 81-83 and the 5MGE was released (or optional, I forget which) in 84 and accordingly the electronics are also changed between those years. http://s29.photobucket.com/albums/c265/kamesama980/ #2-4 pics there are the 87-88 5MGE wiring which may be closer to what you have than the online supra one or may not. I'll scan the next few pages of the individual plugs in the next day or two.

toyotacressida.net may be as good if not a better place to check since the engine comes from a cressida. (register and log in...we're tricky like that)

-Russell
"You don't get to judge me for how I fix what you break"
'90 Cressida, 7M-GE, W58
'94 Pontiac Firebird LT1, T56
'12 Nissan Frontier V6, M6, 4x4
'90 Suzuki VX800
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#4 Old 01-31-2007, 11:34 PM
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It's for sure an 84.
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