[DarkDMAX1022]

Was driving home from Georgia and my truck all of a sudden went into a limp mode and would not accelerate further and not go over 60mph. I pulled over thinking it was bad fuel and added a fuel system cleaner and the truck cleared up as soon as i started it, 20 minutes later it did the same thing. Continously for the next 100 miles or so i had to pull over turn the truck off and start it up to finally get home. This morning i went to my work and read the codes, P0202-Injector circuit open cylinder 2, and P2149- Fuel injector group B supply voltage circuit/open. Im really not sure what to do and could really use some help if anyone knows anything about this. As soon as it limped i put my PPE back to stock. Someone please help me out.

 

[Ryankx250]

Sounds like the #2 & #7 injector harness problem that was common for the LLY's.

 

[RedBowTies88]

yes it is.....you need to either ice pick the harness or buy the updated harness replacement

 

[DarkDMAX1022]

You have any idea where i can get either?

 

[Ryankx250]

GM parts direct, P/N 98017958 Right now they have it listed for $150.

 

[RedBowTies88]

ok well the harness you can get at the dealer or gmpartsdirect.com

the ice pick trick is kind of a nig rig solution but it usually works very well

 

[DarkDMAX1022]

Awesome thank you very much everyone on here is a huge help, is this easy to replace? Im not an ASE certified mechnic or anything but im pretty good with the mechanical stuff at least. Something i should attempt?

 

[Ryankx250]

Yes the dealer is an option. I wasn't thinking about it. I happened to be on GM parts direct when the post came up

 

[RedBowTies88]

Awesome thank you very much everyone on here is a huge help, is this easy to replace? Im not an ASE certified mechnic or anything but im pretty good with the mechanical stuff at least. Something i should attempt?

its just simple wiring...cut out the old harness wire in the new one


if you need to just get back on the road for now till you replace the harness just ice pick it

 

[DarkDMAX1022]

i think i might try the ice pick procedure until the harness comes in im gonna go ahead and order it, is there any diagrams or anything available showing how to icepick the harness?

 

[RedBowTies88]

there's a good write up on DP about it....try searching over there. pretty straight forward though. here a basic breakdown of it

1. remove connector
2. take ice pick or all
3. (my own personal addition) heat it up real hot so it melts though the plastic instead of cracking through it.
4.shove it right through the middle o the connector
5. spray the hell out of both ends (injector and connector) with electrical contact cleaner
6. re-assemble

 

[RedBowTies88]

heres ricks write up of it on diesel place


Diesel Place

 

[DarkDMAX1022]

thank you much il be sure to check it out, im assuming by the anger in your ice pick method you had the same problems? lol

 

[RedBowTies88]

haha yea scared the crap outta me i was going up a bridge on a major highway then all the sudden no power.

i never got the new harness the ice pick has been working for over a year for me now. but really the harness is the right way to do it

 

[DarkDMAX1022]

Thats not good, i was about 200 miles out and managed to get home barely! And ok so pretty much im just gonna disconnect the harness and shove an icepick through both sides so it seats better.

 

[DarkDMAX1022]

Do you think it is possible to damage something when driving it far distance in limp mode?

 

[RedBowTies88]

Thats not good, i was about 200 miles out and managed to get home barely! And ok so pretty much im just gonna disconnect the harness and shove an icepick through both sides so it seats better.

pretty much....you actually one just go through one side but go clear through if possible


when mine went i couldnt get over 20mph. when the #2 injector loses connection it shuts down the whole bank and basically the truck only runs on 4 cylinders

thats why it sounds like an old cummins


i would avoid driving far like that....dunno if it would hurt anyting but just seems like a bad idea

 

[DarkDMAX1022]

wow that really works! that was the easiest thing i have ever done to fix the worst sounding problem lol Thank you very much Beech! you rock.

 

[RedBowTies88]

no prob man...but keep in mind its not necessarily permanent. keep something resembling an ice pick in the truck with you just in case and if you have some cash around buying and installing the harness isnt a bad idea

 

[DarkDMAX1022]

will do thanks again!