Frozen commanded rail psi.

[JDPlowboy]

05 lly commanded rail psi is frozen at 9,137psi, so it starts and runs but pops and misses going down the road. It has edge juice on it, but first thing I did was unhooked it's harness from the truck and it had no effect. The truck has no codes or the 2k fuel limp.


1997 chevy 6.5 turboo diesel

2001 chevy rclb, wcfab ihi/s480 compounds

 

[PureHybrid]

How are you monitoring pressure? I don't see how commanded pressure would stay the same. If its actual pressure that would make sense.

 

[JDPlowboy]

With efi live scan tool. Ya, actual psi is scrolling like normal but no matter what throttle position commanded stays at 9137


1997 chevy 6.5 turboo diesel

2001 chevy rclb, wcfab ihi/s480 compounds

 

[JoshH]

You sure you have the correct PID selected? Is actual rail pressure staying close to 9137?

 

[JDPlowboy]

Ya I have correct pid. Thought my computer was on the fritz so went to another truck and it worked fine. Actual hangs right there with commanded like normal.. If I go into Dvt tab and command moar rail manually u can get her to chatter like a old cat dozer lol. I'm thinking ECM needs reflashed by chance?


1997 chevy 6.5 turboo diesel

2001 chevy rclb, wcfab ihi/s480 compounds

 

[JDPlowboy]

Anybody else seen this?


1997 chevy 6.5 turboo diesel

2001 chevy rclb, wcfab ihi/s480 compounds