Truck is a 2008 Dodge 2500, auto.

Fully deleted and tuned by DRD (awesome job!).

I normally drive around on the 120HP tune but ever since I first put the tunes on I can make the truck cut out at full throttle and it gives me a dead pedal for a few seconds.

It doesn't do it on the stock or 60HP tune and gets worse on the 200HP tune which I've only tried a couple times. (stock tranny).

I do have the trans tune, not sure exactly what all that does, automatics are all voodoo and black magic to me. (always been a manual guy).

Seems to be getting worse and not so much full throttle anymore, even just stepping on it when pulling out into traffic you have to be careful and the dead pedal lasts a little longer.

I talked with Ray at the beginning and did some data logging.

He couldn't find anything wrong and said everything was working as it should. We thought maybe the factory lift pump was the culprit since there is now a greater demand for fuel.

Just installed my Air Dog II 165 yesterday but the problem is still there.

Everything else is still stock on the truck.

Any ideas?

Thanks! - Jake