REDUCED ENGINE POWER
I have a 2007 Winn Voyage 38J on a Workhorse W24 chassis, gas 8.1L engine, 78k miles. 3 times in past 5 years I start, I get a REDUCED ENGINE POWER warning and engine feels like running on 2 cylinder...
Forum Discussion
Does your engine have a throttle or fuel position sensor. If yes measure resista.ce at the terminals. Diesel engines with spurious check engine warnings should have fuel rail pressure, tested after which test for poor conductivity at harness junctions
