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Old 10-02-2022, 02:18 AM   #73
jeepmor
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Join Date: Apr 2014
Drives: 84 CJ7, 08 Duramax, 2014 FRS
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Quote:
Originally Posted by Ultramaroon View Post
Indeed! That's why a second known good lamp must be used to verify the outlet. Cascade failures are a reality. Never trust new devices. Swaps with those already in service must be considered. Real-time signal monitoring is invaluable. Blah blah blah... I know I'm preaching to the choir.

@jeepmor, It occurred to me that fuel might be in play because the misfire happens above 6 kRPM. That also happens to be the speed threshold for closed-loop fueling. Coincidental? Dunno.
Bone stock besides the SC and the new coil testing the problem. Was looking for a simple fix on my own before taking it in to a shop. Was wondering about injectors but there isn't much info on this particular code. But makes sense to be starved a bit at top end if dirty. I do have over 100k miles.

I do appreciate the input.
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