Toymods Car Club Inc: Tech & Conversions => 7M-GTE Issue - Diagnostic Code 31 (WITH VIDEO OF PROBLEM)

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Danners
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Location:
Central Coast, NSW
Registered:
May 2002

7M-GTE Issue - Diagnostic Code 31 (WITH VIDEO OF PROBLEM)	Tue, 24 May 2005 00:31

Hi All, I own a 1990 MZ20 Soarer, powered by a wonderful 7M-GTE engine! (sarcasm!) I recently had the car converted from its standard auto a340 box to a 5 speed w58 box that I scored off a Supra. Gearbox aside as soon as I got it back i started having engine issues, running incredibly rich and stalling constantly - found that this was the hose coming from underneath the turbo to the intercooler had cracked and blown off completely with the extra pressure. This was fixed. Now my current problem - I haven't heard a peep from the car in 2 weeks or so until randomly it starts jolting around a bit while driving, and will stall if i don't keep the revs up whilst changing down gears. The car displays an error code 31. I know this to be AFM related so I have tried my first AFM, and a spare one that I had from another engine... both exhibit the same results. The other day I was attempting to fix the car, started it and then shut the bonnet... the car stalled immediately which lead me to beleve there was something loose. I started the car again and shut the bonnet, it stalled once more. I started the car again with the bonnet open and gave my strut brace a few thumps with my fist and it once again stalled. I can't seem to find exactly where the problem is, so i've been randomly swapping parts from my spare engine to this one, so far i've only done the AFM and the IASC (idle air speed controller) after cleaning it properly of course My car is booked into an auto elec but i thought there might be a guru here that could give me some advice as i'm still not even sure if the issue is mechanical or electrical! Cheers for ANY info you guys can give me, as my car is pretty much undriveable at the moment A video with quite good sound of the problem can be found here http://members.iinet.net.au/~danners/7MIssues.wmv Dan [Updated on: Tue, 24 May 2005 12:41] [Report message to a moderator]

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