GM Duramax LLY Injector Harness Upgrade Kit For 2004.5 -2005 LLY Duramax Engines

$275.13 $237.50

1.5 average, based on 2 reviews

Product Information

GM Duramax LLY Injector Harness Upgrade Kit For 2004.5-2005 LLY Duramax Engines

The LLY Duramax engines have a known issue with the injector harness wires for #2 & #7 injector where you will throw a CEL, code and go into limp mode. There is a temp fix callled the Ice Pick fix which can get you running again if you have the ablility to clear the code. This is only a temperary fix and it will happen again. This kit will fix it permanently so you do not have to worry about being left stranded on the side of the road somewhere with no way to clear the code and get out of limp mode. You will need a tool for crimping wire connectors and a socket set for the harness bracket.


Kit Includes:

  • 2 Injector wire leads (#7 & #2) with injector plug end
  • 6 Crimp wire couplers
  • 2 harness brackets
  • 2 bracket bolts


Customer Reviews

Average Rating: 1.5


Why is cost so high for a 5 dollar piece of steel and a 5 dollar plug in? Answer: You would have to ask GM that since that is where we buy them. We have a small mark up and thats it. Try buying an AC Delco Fuel filter at the dealer its double what we charge.

Anonymous :: Sep 14 2012, 08:26 AM

Harness upgrade kit for LLY

I recieved my product quickly and was free shipping. GREAT! The parts looked very good in quality. Only problem I had is I wish they would have sent instructions on where the new harness support brackets go. I was able to figure out where one bracket went. It was really frustrating when you spend that kind of money and don't get instructions.

Chuck :: Apr 16 2012, 15:15 PM

Write a review


Our Shipping Policy | Terms and Conditions | Our Privacy Policy | Contact Us

Copyright MadJack Diesel Performance 2014. All Rights Reserved.

Mobile Site