I hope some one could take a look at this for me. I am tuning a 2002 gmc 1500 truck. It was originally a 5.3/4L60e. Now it is a built 6.0L/4L80E with a
D1SC procharger making about 10psi. I am using the 2bar SD OS with 4L80E patch from EC tune (thanks doug!!). The truck runs great and if I set shift points for 5500rpm there are zero problems and the truck runs great. But if I bump the shift points up to say 5800 I hit some limiter that shuts down the injectors and the truck runs in some kind of reduced power mode till you lift.
If you lift its fine and ready to rock again. The only thing I see that might be the problem is that as long as dynamic airflow stays under 450 g/sec it does not do this. On the logs that do it I see 460's for a frame then boom it shuts off. Could you guys take a look at the file for me and see if I missed somthing?
I attached a log file go to frame 410 and you can see WOT at 5700 then boom injectors off and I am still at WOT.
Thanks
Nolan