hello, so i have been fixing up my charger that has been broken for a while cylinder 1 and 3 were broken so I have new pistons in both of them. now that i got that out of the way i have a misfire in cylinder 1 roughly 24 at start up and it only misfires at 2700RPM or greater. you can tell it sputters at that point.

I have tested the coils from cylinder 1 to cylinder 3 no difference.
looked at spark plugs and no improper fowling or any abnormal about the spark plugs.
Will be doing the compression test Monday.

what should I do based off if it fails or if its good.?

I have attached my hp tuners logs

anything helps thanks.

 

Can't read the log file. Need to save it in some format that notepad, or something will understand.

 

Hp tuners vcm will work on it. As I said it was a HPtuners log.

 

Is there a free download for that?

 

https://www.hptuners.com/downloads/ the first link all hp tuners people use this to look at the logs. Yes it is free.

 

Ok, I LIKE that. Very cool.

Watching the initial run time, it almost looks like there is a vacuum leak there somewhere. Given that cylinder 1 is the only one misfiring, gotta be someplace that only affects that cylinder. Intake leak? Might try spraying around with some carb cleaner at idle, and see what happens.