Hey guys, Quick question. I took a look at a friends blazer today. He recently swapped in a 06 4.8 and 4l60e. Truck has a harness and PCM from Performance Specialties (I Believe). and it starts up great and Idles fine but if you go to give it any throttle it maxes out at 18ish% on the TPS and 1500 RPM's. its also worth noting that i couldn't pick up hardly any parameters with the scanner. TPS, Oil pressure and MAF Frequency were the only thing I could Log. He had a harbor freight scan tool that could read everything, I found that weird. He has replaced TPS, Throttle Body, Tac Module, o2 sensors and fuel pressure is good. I posted the File, any heap or push on the right direction is greatly appreciated.