wagonist Posted October 6, 2015 Share Posted October 6, 2015 So the 4EAT is rare here behind the EA82. I now have one in a 90 JDM turbo wagon with digi dash, cruise (was a bit surprised it doesn't have the outside air temp as my 85 digi dash did). Anyway, my plan is to teach my wife to drive with the auto & then convert to fulltime 4wd manual. I've been told that despite there being 2 computers (ie the engine ECU under the steering column) & the auto gearbox computer (in the rear left quarter) that they talk to each other & you can get any fault codes from the auto computer showing up on the engine's ECU LED. How much of this is true? (my source isn't that reliable ) Are there going to be any major problems converting it to a manual later? I know about things like the neutral cutoff switch in the shifter, and also the reverse lights. Link to comment Share on other sites More sharing options...
jono Posted October 6, 2015 Share Posted October 6, 2015 just getting your wife used to a third pedal is likely all you are gonna have problems with the... ok, I will call it a 4EAT , the 4EAT that I scored came out of a car that got a normal 4WD DR selectable FWD 4WD box or maybe an RX box and from memory there were no issues. He left the TCU in the car, and sold it as same- a hidden TCU If the TCU and ECU spoke to each other it may have been ECU assisting the TCU rather than other way around . The ecu does have a pin that is supposed to be a transmission identifier like earthed of manual and not if auto sort of thing. I went 3 spd auto to manual and did just what you know - linked start in neutral wire and that was it. Ran OK without any ECU pin grounding/ not grounding Link to comment Share on other sites More sharing options...
wagonist Posted October 6, 2015 Author Share Posted October 6, 2015 Except the 3spd auto is a hydraulically controlled box, not electronic. If yours was an Oz delivered GLTA, then it also ran the black cased ECU, not the gold case, and would've had the separate ignition advance module beside the glovebox. My first turbo conversion was using an 85 3spd auto cut which I changed to manual, so I know about that one. The 4 spd is a different kettle of fish. Will cross the bridge about the wife using the 3rd pedal later Link to comment Share on other sites More sharing options...
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