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Torque » Torque OBD ECU Scanner » Torque Discussion / Ideas » Duramax no rail pressure

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Author Topic: Duramax no rail pressure
Stevent
Member
Posts: 12
Post Duramax no rail pressure
on: July 31, 2014 (GMT)

Got a lb7 duramax I need to see the fuel pressures to fix a problem please help
Stevent
Member
Posts: 12
Post Re: Duramax no rail pressure
on: July 31, 2014 (GMT)

Bump
jony33
Member
Posts: 1
Post Re: Duramax no rail pressure
on: October 17, 2014 (GMT)

Thanks for posting Good Luck

________________
Mohsin
mdoerner1
Member
Posts: 13
Post Re: Duramax no rail pressure
on: January 3, 2015 (GMT)

Hello,

Just got the app. I see the same issue with my 2013 Duramax. What I’ve found so far is if you use the “Fast Scan” instead of the “Thorough Scan” for the protocol on start-up causes certain components to work, and others not to work.

For example, when I use “Fast Scan” on the comm protocols, I get incorrect fuel injector balance rates. When I use “Thorough Scan”…I get the correct balance rates, but lose the gear shift display…..:-/

I’m going to try an plow through all the “duramax” data posted here 1st….then I’ll start asking questions….:-)

Mike Doerner
2013 Duramax HD 2500 CCSB
Samsung S5
BAFX OBD2 Scanner

Mike Doerner
2013 Chevy Duramax 6.6L Crew Cab Short Bed
Samsung S5
BAFX OBD2 scanner
Capp777
Member
Posts: 2993
Post Re: Duramax no rail pressure
on: January 3, 2015 (GMT)

It might be worth noting the protocols in use
by looking under the adapter status icon
functions for protocol in use and which module
is reporting.
mdoerner1
Member
Posts: 13
Post Re: Duramax no rail pressure
on: January 3, 2015 (GMT)

I’ll give that a whirl….thanks.

Mike Doerner
2013 Chevy Duramax 6.6L Crew Cab Short Bed
Samsung S5
BAFX OBD2 scanner
jlunz02
Member
Posts: 1
Post Re: Duramax no rail pressure
on: November 14, 2020 (GMT)

Has anyone figured out how to read fuel rail pressure on lb7 duramax?

2002 stock Chevy 2500 duramax
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