trucks been running funny lately

 

trucks been running bad lately at wot throttle first gear is fine in second it goes up to about 5k then drops to 3k as if you have let of the gas then revs back up...

 

Do you have any logs? I don't see injectors as you mod in sig, are you still running stock injectors? IMO with that cam, heads and other mods you might be out of injector.... But it is just all of sudden it started or did you notice it after a mod you have recently done?

 

I'm still new to this EFIlive stuff so I'm not sure how to log stuff but yeah it just started doing it about a week ago... I'm thinking it may be the cats thats going bad

 

The only way to really figure out what is going on is to log. Alot of the guys on EFI live forum need to see logs to tell what is going on. I noticed you sig mentions a nelson tune, did he do the orginal tune in your truck and you just modifying it now? Your VE table looks stock, but you pushing like 26 degrees of timing, your PE mixture looks good. Do you have a wideband?

 

no wideband yeah nelson did the tune... how do I get the logs?