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Advanced Tuner
#7 Injector Stuck on - Sorta
Customer indicated a glowing CAT. After researching the problem it was determined that the #7 injector is hanging open for 100+ms. Switched the #5 and #7 injector and the same thing happened. So the injector isn't bad, the wiring to the ECU looks good, voltage signal are identical between #5 and #7, ground is good. Scan tool indicates injector opening time for #7 is 138ms.
I can't find anything in VCMEditor that allows individual injector control.
Any thoughts or recommendations?
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Tuner
This same thing happened to me on an LS1 car many moons ago. Had to actually prove it to myself by watching the injector pattern on a scope.
Took a new PCM to fix it.
Good luck.