Pontiac Problems? Ask a Mechanic for Answers ASAP
Welcome, I'm Chris (aka Moose) I prefer to work when others don't, I am here around lunch and after dinner till after midnight.
I see you were asking if this is free. It is not. Do you want to continue?
Yes, if you have more to add, please do so now.
While running and misfiring. If you remove injector connectors one by one or plug wires one by one. Is there one cylinder when disabled that does not result in it running worse?
Thanks, ***** ***** a subtle or intermittent misfire your getting.
What model car is this and what liter engine?
Do you have access to a sophisticated scan tool?
Will your tool perform a power balance test to see which cylinder is providing less than the others?
If you drive the vehicle and find that sweet spot where it runs its worst and keep it there. Will it eventually turn on the check engine light and store a code.
The flash means a misfire is detected. What code number is *****?
My recommendation is to move cylinder 1 plug and wire and injector to another cylinder and retest. If the concern remains at one then do a compression test on that complete head. If that is good then you need a scope to monitor the injector signal to see if its dropping out from a computer issue.
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Hello again Chris here,