Medium and Heavy Trucks
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would you please post yr,make model of vehicle and engine serial and model number?
What psi is high?
Does check engine light come on before it dies out?
Thanks for info
Fuel pressure to start engine is only about 20 psi but as you raise rpm and put a load on engine fuel pressure will increase to over 150 psi.
What kind of fuel pressure do you have?
Any exhaust smoke and what color?
Does engine sound smooth when running or sound as if it has a miss?
What was original issue before replacing Engine position sensor?
pull fuel check valve out of ecm cooling plate, it's the front fitting, it probably came apart or has some junk in it
It's also possible you are getting compression in fuel system from a sticking injector check valve but normally you get a miss when that happens
If you still want a phone call click accept so We can talk and go over everything pretty fast.
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Okay sounds good
Needs to have check valve click here for location and image
If you think its a power issue check to make sure you are NOT loosing power to shutdown solenoid when it dies
if you are loosing power re check for codes using cruise switches, if you don't know how let me know
let me know codes
Then it does have a code if you are loosing power to solenoid here is how to get codes
Use the following procedure to retrieve the flash codes from the check engine light:Turn the ignition key switch to the On position/ Engine OFF.Turn the cruise control ON/OFF switch to the OFF position.Move the SET/RESUME switch to either position. Hold that position until the yellow lamp begins to flash.The yellow lamp will flash in order to indicate a three digit flash code and the SET/RESUME switch may be released. The sequence of flashes represents the system diagnostic message. Count the first sequence of flashes in order to determine the first digit of the flash code. After a two second pause, the second sequence of flashes will identify the second digit of the flash code, then the thirdAny additional flash codes will follow after a longer pause. It will keep repeating codes until you turn off key.Any questions just let me know.
You need power to solenoid all the time with key on or engine will die
I have other things to do today, will be gone for several hours, if you want the phone call we need to do it soon.
let me know what codes you have then accept answer so I can call