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04-28-2012, 12:38 AM
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#1 |
 Toyota Racing Development Join Date: Apr 2007
Posts: 5,038
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Code 31 is an electrical failure. Nothing to do with the housing or trim screw.
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If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal.  Tip Jar --->  Last edited by cre; 04-28-2012 at 03:27 AM. Reason: Posted info here that was for another thread. |
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04-28-2012, 01:05 AM
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#2 |
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3" Exhaust
Join Date: Mar 2012
Location: California
Posts: 105
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Forgot to mention im NA :[
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04-28-2012, 02:34 AM
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#3 |
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Toyota Racing Development Join Date: Apr 2007
Posts: 5,038
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Oh god... sorry. mixing up posts.... Just trying to check in while dashing from one place to another.
Forget everything except that 31 is an electrical failure. Resetting the idle/bypass air screw isn't going to fix that. Test the AFM as detailed in the TSRM.
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If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar ---> |
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04-28-2012, 02:43 AM
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#4 |
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Supra Forum Moderator
Join Date: Nov 2009
Location: Green-Ohio
Posts: 1,297
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rotflmao..
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 92 Ma71 7mGTE Auto. SafcII Supra FAQ Supra MKIII FAQ Classified Section guidelines : |
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04-28-2012, 02:55 AM
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#5 |
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3" Exhaust
Join Date: Mar 2012
Location: California
Posts: 105
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Oh okay lol. Well okay so electrical issue.....i
Are you meaning the unit itself or the wiring harness? |
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04-28-2012, 03:00 AM
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#6 |
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Supra Forum Moderator
Join Date: Nov 2009
Location: Green-Ohio
Posts: 1,297
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http://www.cygnusx1.net/Supra/TechTi...ror_codes.aspx
the black box is sort of hard to break unless one goes dicking with it.. trying to "clean" it's optics by spraying something in there and wiping it off.. most likely cause is a faulty wire. I'd start there. helping to rule things out.. your ecu is not the culprit.. those things don't generally break.. So that just leaves.. your afm. or your afm circuit.. the box or its wires.. check the voltage and you have your answer
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92 Ma71 7mGTE Auto. SafcII Supra FAQ Supra MKIII FAQ Classified Section guidelines : Last edited by Green7mgte; 04-28-2012 at 03:04 AM. |
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04-28-2012, 03:29 AM
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#7 | |
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Toyota Racing Development Join Date: Apr 2007
Posts: 5,038
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Quote:
He's got an N/A which means he's got a VAFM (Vane AFM).... They are a wear component and do wear out.  But really 20+ years of vibration and bouncing around can take a significant toll on the KVAFM as well. Regardless, the issue here is most likely the AFM or the harness.
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Hybrid Mode
