I had a bad throttle body on our V10. I found a mobile mechanic who fixed it in the storage area.
The failure appeared suddenly. Did a trip, stored RV at storage area. A month later went to pick it up for a trip and it threw error codes. Ran the ScanGuage and it said it was in limp mode and throttle plate was stuck shut. Couldn’t drive it anywhere being stuck in idle mode with a max of 1000 rpm.
Mobile mechanic used his diagnostic controls and said the throttle plate motor was working correctly to move the throttle plate, but the position sensor was bad so the position could not be measured. The sensor could not not be replaced separately so it required a new throttle body unit. Mechanic was able to replace throttle body from the front so didn’t have to open up the doghouse.
Good thing ours didn’t die on the road, I can imagine the hassle. Hope you find a competent place to work on your rig soon.
