when a fault is detected in the electrical portion of the circuit.. such as harness, connectors, the windings in the coil of the injector or the ecm itself... It states that if it doesn't have this problem for 3 consecutive self tests of the system on 3 starts it will turn the light off...So it looks like your back to checking connectors on injectors, resistance values for the injector, ecm etc....




Quote Originally Posted by George M
Thanks for the info Bill. Wonder if it is related to my friend's Aurora issue? Bill his OBDII code is:P0203 with an open injector circuit on cylinder 3. When is goes into this mode and flashs a Check Engine Light, the motor stumbles and goes into a pronounced mis-fire and exhaust gases become quite foul. It will overtime clear itself but generally will come back. Suggestions? Do you think it may be related? What kind of gas treatment should be performed...something more invasive than Techron? I already suggested to him to switch gas stations for a while.
Thanks for any further advice,
George