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Mike F · 04-30-2007, 10:43 PM

Just one side of the motor is fine for the oxy sensor as long as it can see all 4 cylinders. A code 12 will come up when in the error code mode to tell you that you are in error code mode, the error codes will be between the code 12s.

A bad IAC will probably not set a code. The IAC may or may not be your problem. IAC stands for "idle air control" it is not a sensor but a little stepper motor controled by the ecm used to open and close a air hole that bypasses the throttle blades to control idle.

04-30-2007, 10:43 PM	#8
Mike F EFI AMC 360 Join Date: Mar 2007 Location: New Lebanon, OH Posts: 32	Just one side of the motor is fine for the oxy sensor as long as it can see all 4 cylinders. A code 12 will come up when in the error code mode to tell you that you are in error code mode, the error codes will be between the code 12s. A bad IAC will probably not set a code. The IAC may or may not be your problem. IAC stands for "idle air control" it is not a sensor but a little stepper motor controled by the ecm used to open and close a air hole that bypasses the throttle blades to control idle. __________________ 89 YJ EFI AMC 360, T18a, D20, built D44, 14 bolt, 38" Creepy Crawlers.