Hello guys I am new to Duramax motors and have an issue to resolve
The truck is an 02 LB7 and has p1093 and 1094 showing.
Using a Tech 2 i checked balance rates once I got it running on juice and had values from -2.3 to 2.7
When I commanded 160 MPA on the scanner it only made 64mpa.
Injector on times ranged from .34 to .49ms.
The rail pressure at KOEO is 1.6mpa
The filter is new
The truck doesn't smoke, just falls on its face and won't restart without help.
I pulled the return line off the back of the motor and cranked it twice for 15 seconds to see how much fuel it was returning. It was less than 75 ml
A contribution test showed nothing.
I'm leaning towards a regulator but really don't know for sure where to go next.
Can any of you offer some advice to a newbie?
thanks for your time.
The truck is an 02 LB7 and has p1093 and 1094 showing.
Using a Tech 2 i checked balance rates once I got it running on juice and had values from -2.3 to 2.7
When I commanded 160 MPA on the scanner it only made 64mpa.
Injector on times ranged from .34 to .49ms.
The rail pressure at KOEO is 1.6mpa
The filter is new
The truck doesn't smoke, just falls on its face and won't restart without help.
I pulled the return line off the back of the motor and cranked it twice for 15 seconds to see how much fuel it was returning. It was less than 75 ml
A contribution test showed nothing.
I'm leaning towards a regulator but really don't know for sure where to go next.
Can any of you offer some advice to a newbie?
thanks for your time.