LGH (detuned LML in a van) Engine Shuts off at full throttle

Hoopdee-LGH

New member
Nov 22, 2024
1
0
1
Torrington, CT
Whether parked or driving, engine revs up with throttle at full throttle until suddenly it shuts off. Actual Fuel PSI exceeds Desired but shuts off before DTC can set. New MAF, temp sensor at air filter, Fuel pressure regulator 2, fuel pressure sensor. If you drive it below full throttle you can drive just fine. Like it's shutting off from fuel pressure too high. Ideas please?
 

Mikey52

Active member
Sep 20, 2018
131
32
28
Check voltage output of accelerator. It might be out of range causing ecm to do something weird. What year we talking about.