03 Idles fine but now power
I'm looking at a truck for someone I know, it is an 03. The original complaint was he was driving down the road and started losing power. He pulled over and then the truck shut off and would not start. The truck starts ok but when you try to throttle up it will not go past a certain point. If i ease into the throttle I can get icp pressure up to about a 1000 psi but when i floor it it stays down around 600-700psi. I found the icp sensor leaking oil through it and replaced it but still has problems. Any ideas?