Originally Posted by BabyHuey94
I'm dealing with the same issue. Have the new temperature sensor but do not know how to troubleshoot which injector is giving the bad signal - or what to do about it (engine runs fine). How do you diagnose which injector is the bad actor?
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There are a few ways to test injectors. One of the simplest ways is to unplug them one at a time on a rough running engine. The one thas causes no change in the idle is likely bad.
Another way is to check the solenoid coil inside the injector with an ohm meter. I don't have any specific details on this method hewever.
A third and popular way is to use what is called "noid" lights - basically little lights that clip into the injectors and light up whenever one of them fires.
hope that helps!