High boost PSI/low power
Dealer changed out stuck EGR valve & replaced the housing. Picked the truck up this morning. I just installed Spartan tuning with AFE down pipe back delete exhaust with muffler. Tuning set at stock with DPF delete. Truck is down on power with high boost. Truck has trouble holding over drive doing 70mph with 35-40lbs boost. My boost never read that high or struggled holding overdrive prior to the EGR valve sticking. Any ideas? No codes showing on the spartan. Fuel filters new. I didn't rehook up the press sensor on the wiring harness after installing the AFE exhaust. Would this mess with the Boost and output? The 3 other probes are reinstalled in the new exhaust and hiooked up.