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So I swapped ECMs and the misfire went away. I think I fried it when I first got done with the motor, I forgot a ground and it wouldn't start. I fixed that it ran fine then later started missing. Now...

Oh yes, I raised them from stock based on another forum I was reading with no luck. Stock values won't lock it.

Didn't know if apply/release tables might be a factor. Or if something else I'm...

Thank you for the reply. I will see if I can get a wideband and log it.

Sorry to sound ignorant but I've search so many forums for lockup, where do i go to turn it on if it is off?

Hello all,

I've been searching lots of forum without luck. :banghead:

I'm having an issue with my truck missing and popping around 2-3k light throttle.
I'm trying to rule out if my tune is the...