noticed the other day when I went to leave a job site my Check Engine Light came on but the truck started fine and seemed to run normal. while cruising down the highway I noticed that my factory boost gauge was showing 35psi and fluctuating between that and around 10. looking at my H&S it was showing normal boost readings for the current driving condition, when I came to a stop the H&S would show 0psi but the factory one would fluctuate between 0 and 35-40psi I can tell the turbo is not spooling at all during this time. if I take off from a stop with the gauge showing 35 the engine sounds louder than normal at first take off compared to when the gauge is reading normal. I haven't gotten a change to get it in my shop yet to look it over but does the dash gauge read from a different sensor that what my H&S is reading? Truck is an '11 F250, deleted both EGR and DPF with H&S tuner. I checked codes and all I have is P06A7. any advise as where to start?

 

There are experts that will chime in but I think I would do a flash back to stock and then another flash to your preferred tune. So much of this engine is controlled by software I think I would eliminate that first.

 

X2.


Even though you are deleted, I'd flash back. Start it at idle and see the guage and run for codes.

 

That's good advice

 

ill give that a try