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[Mk2] [Turbo] Error code 12 and revs hunting, wonít idle.

 
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msherry21




Joined: 20 Dec 2004
Posts: 590
Location: Glasgow
Feedback Score: 0

1994 Toyota MR2 Mk2 Turbo Rev3

PostPosted: Mon Mar 12, 2018 9:08 am    Post subject: [Mk2] [Turbo] Error code 12 and revs hunting, wonít idle. Reply with quote Reply with quote including images

Hi all, right, Iím getting fed up with this fecking car now!
I have an error code: 12, distributor or wiring issue.

I canít set the a ignition timing due to the revs hunting and refusing to have a steady idle. I have the TE1 and E1 terminals bridged.

All earths/ wires coming from the distributor plug look good and Iíve already replaced the coil/plugs/dizzy cap/ rotor and distributor itself. Leads were replaced maybe 2 years ago.

Iím looking for someone to either come out and help diagnose the actual problem or help fix it or at least lead me to the problem, Iím all out of ideas and itís really just frustrating me now.

Cheers, Michael.
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mr2magic




Joined: 09 Apr 2010
Posts: 630
Location: Hannover, Germany
Feedback Score: 1

1991 Toyota MR2 Mk2 Turbo Rev1

PostPosted: Mon Mar 12, 2018 11:53 am    Post subject: Reply with quote Reply with quote including images

I would hazard a guess, that the wiring to the 4 pin dizzy connector has a problem. Remove the connector and have a good look at the wires/contacts. It may be one is frayed.
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Bear87
Premium Member



Joined: 28 Sep 2016
Posts: 270
Location: Essex
Feedback Score: 1

1992 Toyota MR2 Mk2 Turbo Rev2

PostPosted: Thu Mar 15, 2018 7:55 pm    Post subject: Reply with quote Reply with quote including images

I agree with mr2magic I would check all the wiring between the distributor and the ecu first. (Testing is at least free) however i had a similar problem and it was the knock sensor!
Have you checked the capacitors on the ecu? Really common issue.
What rev is the car does it have a amf? That would explain hunting and unusual error codes. I would be happy to come and help anyone but in in Essex its a little way from Glasgow!
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Smoke me a kipper. I'll be back for breakfast.
1992 Rev 2 Turbo Super Red
1991 Rev 1 N/A Steel Mist Grey (daily)
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