Engine code 12 on 5s

1994MR2 · 08-22-2006, 07:04 PM

It's been like this ever since I bought my 2. Everytime I start my 2 in the morning or when it sits for more than 3 hrs, the check engine light will go on for like 10 minutes then off.

From BGB,
System: RPM Signal

Diagnosis: No NE or G signal to ECU within serveral seconds after engine is cranked

Trouble Area: Distributor circuit, Distributor, Starter signal circuit, ECU

God, it's so annoying......really want to fix it asap. Can anyone tell me what NE and G signal are? And help me out with it. Thank you!

butangviber · 08-24-2006, 09:50 PM

I had the same error on my car, but my car wouldnt start at all. I found that i didnt have the little 2wire plug on the lower part of the Ignighter. I would check to see if you have good wires. Get some electrical cleaner and unplug each connector and blast 'em. Then plug it back in. See if that clears up your problem.

08-22-2006, 07:04 PM	#1 (permalink)
1994MR2 No Skills Join Date: Mar 2006 Location: Bay Area, CA Posts: 81 Thanks: 4 Thanked 0 Times in 0 Posts iTrader Rating: (1/100% )	Engine code 12 on 5s It's been like this ever since I bought my 2. Everytime I start my 2 in the morning or when it sits for more than 3 hrs, the check engine light will go on for like 10 minutes then off. From BGB, System: RPM Signal Diagnosis: No NE or G signal to ECU within serveral seconds after engine is cranked Trouble Area: Distributor circuit, Distributor, Starter signal circuit, ECU God, it's so annoying......really want to fix it asap. Can anyone tell me what NE and G signal are? And help me out with it. Thank you!

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08-24-2006, 09:50 PM	#2 (permalink)
butangviber No Skills Join Date: Aug 2006 Location: Northern California Posts: 9 Thanks: 0 Thanked 0 Times in 0 Posts My Google Map iTrader Rating: (0/0% )	I had the same error on my car, but my car wouldnt start at all. I found that i didnt have the little 2wire plug on the lower part of the Ignighter. I would check to see if you have good wires. Get some electrical cleaner and unplug each connector and blast 'em. Then plug it back in. See if that clears up your problem.