i'm pretty sure you can use an OBD1 ecu in an OBD2 car with no problems, but not the other way without problems. the obd2 computer should have extra pin inputs that the obd1 wiring harness can't support.
woudl there be any problem using a 97-98 ECu in my 94 supra?
If you have details on the conversion I'd like to hear about them, one of my buddies just asked me about swapping his 97 auto ECU w/ a 94 that he just got his hands on. What modifications need to be made if any.
I can't see any point in swapping you ECU w/ and OBD2 one, that is basically the opposite of what most people would want to do.
the thing is 94 ECU runs lean...and frankly speaking I rather run rich than lean.
I now have 2 guys confirming with me that when they use 94 ECU in their 97 supras, both of their A/F jumps up to 13-14:1
I find it hard to believe its a coicidence...
andi's car did this but it was more then just the ecu causing it. a 94 ecu in a 94 should run just fine... ie. rich, but when you transplant a 94 ecu into a 97/98 to solve obd2 problems you get problems with lean a/f.
in other words, if you are hoping of solving a/f problems in a 94 with a 97 ecu, you are barking up the wrong tree.
MANY ppl run the pre obd2 ecu in their 97-98 cars. I know Noel Samael of Dallas has been running a 95 ECU in his 98 for some time now (he has a 730 rwhp to4r). I soon (in the next week) will be running a 95 ECU in my 98 too, hopefully no problems....
My 94TT is BPU+ and I just got a Haltech Elite 2500 to go standalone. Sticking with stock fuel (upgraded injectors though) for now, and would like to drop in a fuel-pressure sensor somewhere. Is there any easy spot to do that ? Maybe the banjo/union bolt on the existing fuel-pressure...
After I have installed all the new seals, BCsprings, retainers, locks and buckets,
with T-belt off, put crank at -10 btdc so all pistons are slightly down, install new BC 272 cams, install cam gears, torque cams as per manual. Then turn CAMS clockwise to tdc notches, and than turn CRANK to tdc...
I am about to repaint my brake calioers. I’m looking for ideas (my car is white).
Post your pics - try and show your car color - and let’s see what’s out there.
I will post after pics when I have some ideas.
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