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Old 10-05-2014, 03:41 PM   #1
lmmr74
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Default Code 12

So my 89 Supra Turbo dosent? start at all! I did the code diagnosis and got a 12 code...Any ideas of what can this be?

Thanks
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Old 10-05-2014, 09:51 PM   #2
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Question Code 12

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Originally Posted by lmmr74 View Post
So my 89 Supra Turbo dosent? start at all! I did the code diagnosis and got a 12 code...Any ideas of what can this be?

Thanks
Hi ! . found this :

http://www.cygnusx1.net/Supra/TechTi...ror_codes.aspx
Codes explained , also , by clicking " Back " in top left corner , this will take you further into the manual .

http://www.cygnusx1.net/Supra/Librar...x?S=Main&P=040
Ignition system . Click on list to left of circuit to find any other circuit .

Hope this helps .

Last edited by interested!; 10-05-2014 at 10:21 PM. Reason: Extra info
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Old 10-08-2014, 09:11 PM   #3
S-mk3-B
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Default

So does the engine still crank though? And how about some details, did you just buy/get the car, had it been sitting for a while or did this problem just occur randomly?
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Old 10-10-2014, 07:25 AM   #4
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Code 12 - No "NE" or "G" signal to ECU within 2 seconds after engine has been cranked. - Trouble Area: Distributor circuit, Distributor, Stater Signal circuit, ECU.

Sounds like the cam sensor is busted or the circuit is cut. It is in the distributor. The only cam/crank sensor is in the distributor, so a busted sensor means not start.

Last edited by Busted Knuckles; 10-10-2014 at 07:41 AM.
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Old 10-13-2014, 12:16 AM   #5
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Default Code 12

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Originally Posted by Busted Knuckles View Post
Code 12 - No "NE" or "G" signal to ECU within 2 seconds after engine has been cranked. - Trouble Area: Distributor circuit, Distributor, Stater Signal circuit, ECU.

Sounds like the cam sensor is busted or the circuit is cut. It is in the distributor. The only cam/crank sensor is in the distributor, so a busted sensor means not start.
Hi , found this page ( input signals ) in the TEWD , check out no 4 in list . click on prev page(s) ( top left ) for more info about the circuit .
http://www.cygnusx1.net/Supra/Librar...px?S=Main&P=44

Hope this helps .

Last edited by interested!; 10-13-2014 at 12:20 AM. Reason: extra info .
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