'89 302 idles at 1.5k code 12 and code 13 what does it mean?
07-17-2011, 12:44 AM
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'89 302 idles at 1.5k code 12 and code 13 what does it mean?
Did a KOER diagnosis on my '89 302 because the engine was idling at 1500 RPMS with the engine warm and got Code 12 and 13.
Code 12 - "Idle Circuit Fault"
Code 13 - "DC motor did not move" What does this mean? Can't type "DC" "12" or "13" into the search bar, or I'd search for it..
Idle Air Control Valve? The thing runs great otherwise.
Also, where is the IAC on the 5.0's? I'd like to be able to find it so I can unplug it and see what happens o_O.
Any advice is appreciated. Thanks!
-Shawn
Code 12 - "Idle Circuit Fault"
Code 13 - "DC motor did not move" What does this mean? Can't type "DC" "12" or "13" into the search bar, or I'd search for it..
Idle Air Control Valve? The thing runs great otherwise.
Also, where is the IAC on the 5.0's? I'd like to be able to find it so I can unplug it and see what happens o_O.
Any advice is appreciated. Thanks!
-Shawn
07-17-2011, 01:17 AM
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07-17-2011, 04:47 PM
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Took my Idle Air Control Valve off and cleaned it. Put it back on the truck and ran the sucker. The idle is now around 1100 RPMS but surges up to 1500 and settles at 1100 erratically. I unplugged the IAC while the engine was running and warm and nothing changed, the truck ran the exact same way as before I unplugged it. I could rev the engine and it ran like the IAC didn't even exist. Bad IAC right?
