I have a 94 Suburban, 5.7L, 150K miles. Runs great until temp reaches approx. 180. When it gets to temp it starts acting up. If you feather the gas it'll get you back home. If you nail it bogs. I change fuel filter, but haven't put a gauge on it yet. I scanned it and all I get is a 12. Would a failing fuel pump not throw a code? I have access to another vehicle, that I can exchange parts with to experiment. I just don't know where to start. ECM, Map???
Any Ideas would be appreciated.
Dan