My truck is way down on power. It really feels like it does when there's no boost. No odd smoke of any kind. Relatively new IP, Bosch injectors and lift pump, and boost control solenoid. Threw P0236 code, yet I have 20' of vacuum at idle at the wastegate actuator. What am I missing?
Warning, this is going to be long, but I think the chronology of events is important.
I have owned my ‘98 K2500 for fifteen years. Aside from one PMD failure (long ago relocated), and a couple of lift pumps, it’s been the paragon of reliability. My background, ASE Máster Tech, 40 years.
This...