Chevy and GMC Duramax Diesel Forum banner
  • Hey Everyone! Enter your ride HERE to be a part of this months Ride of the Month Challenge!
1 - 7 of 7 Posts

·
Registered
Lmm 4wd dsp 5 tune
Joined
·
6 Posts
Discussion Starter · #1 ·
On my Lmm I just changes all fuel lines from tank to
Lift pump new filters in air dog
Bypassed factory filter with hydraulic hose
I have fprv plug installed
I be been having this issue since the tune went in truck only has 52000 miles I purchased it with 32ooo. And slowly added parts
1air dog 165
2 fprv plug
3Fuel lines
4 Bypass factory filter changed air filters out
im going to drop the tank and check the pick up tube and will probably put in a sump
This kicks this code when I need to pass on highway if I drive conservative it will not through a code
Any one else got any ideas I’m going to log
Some data with the edge cts when I
 

·
Super Moderator
2017 GMC Denali 2500HD, 3.5" Rough Country Lift, 305/55R20 Yokohama Geolandar A/T
Joined
·
2,210 Posts
If the issue only occurs after you put the tune in, then it sounds like your tune is the problem, unfortunately.

Are you able to reload the stock programming? If not, I'd be calling the person who created your tune and having a discussion with them. You've taken care of the normal issues associated with a P0087 on a LMM motor. With that low of miles you shouldn't be having an injector issue yet.
 

·
Premium Member
Joined
·
4,967 Posts
Here is a thread that describes a Known Problem with our trucks. Here is the fix, fast, easy and cheap!

 

·
Registered
Lmm 4wd dsp 5 tune
Joined
·
6 Posts
Discussion Starter · #4 ·
ahh dammit please move this to lmm I posted this on wrong forum
Thanx for the input but I can’t deal with the tuner
He’s out of business
I guess I’ll have to get ef live and figure it out
And 407 driver I already adreesed the fuel lines
With aftermarket braided
 

·
Registered
Lmm 4wd dsp 5 tune
Joined
·
6 Posts
Discussion Starter · #6 ·
 

·
Registered
Lmm 4wd dsp 5 tune
Joined
·
6 Posts
Discussion Starter · #7 ·
 
1 - 7 of 7 Posts
Top