 Have DTC 12 on 1994 ST (1.8L 7A-FE engine) Need help |
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 Jul 21, 2015 - 10:19 AM
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Enthusiast  Joined Mar 20, '06 Currently Offline Reputation: 0 (0%)  |
My check engine light came on about 2 weeks ago. The error code is 12. It was running fine until yesterday. Now it is stuttering at lower RPMs. Any ideas on the problem?
Let me know if you need more info. Thanks, jcrog |
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Jul 21, 2015 - 4:11 PM
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Enthusiast Joined Dec 8, '03 From Lancaster CA Currently Offline Reputation: 6 (100%) |
check the wiring between the distributor and the ECU
distributor just died -------------------- 2001 Celica GT-S Turbo
1997 Supra TT 6speed 1997 Celica 3MZ/1MZ swap 1990 Celica All-Trac |
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Jul 21, 2015 - 5:41 PM
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Enthusiast Joined Mar 20, '06 Currently Offline Reputation: 0 (0%) |
How do I check the wiring? On the way home the idle was rough and low RPMs.(around 700)
QUOTE (Smaay @ Jul 21, 2015 - 5:11 PM)  check the wiring between the distributor and the ECU distributor just died |
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Jul 21, 2015 - 10:28 PM
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Enthusiast Joined Dec 8, '03 From Lancaster CA Currently Offline Reputation: 6 (100%) |
get a multimeter and check the wires. there is a great youtube channel called Eric the car guy. he has videos on this
-------------------- 2001 Celica GT-S Turbo
1997 Supra TT 6speed 1997 Celica 3MZ/1MZ swap 1990 Celica All-Trac |
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Jul 21, 2015 - 11:48 PM
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Enthusiast Joined Mar 20, '06 Currently Offline Reputation: 0 (0%) |
thanks
QUOTE (Smaay @ Jul 21, 2015 - 11:28 PM) get a multimeter and check the wires. there is a great youtube channel called Eric the car guy. he has videos on this |
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Jul 25, 2015 - 9:45 PM
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Enthusiast Joined Mar 20, '06 Currently Offline Reputation: 0 (0%) |
Ok I replaced the plugs, wires, rotor and cap. Runs well but the CEL is still on. I disconnected the ECU and reconnected it as well. Any ideas??
I also removed the negative cable to try and clear the CODE. No luck still getting DTC 12. Thanks |
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Jul 26, 2015 - 9:50 AM
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Enthusiast Joined Dec 8, '03 From Lancaster CA Currently Offline Reputation: 6 (100%) |
did you check the wiring between the distributor and ECU?
the ECU is not getting the RPM signal, this is either the distributor, wiring, or the ECU -------------------- 2001 Celica GT-S Turbo
1997 Supra TT 6speed 1997 Celica 3MZ/1MZ swap 1990 Celica All-Trac |
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