Installation involves cutting and soldering of your engine’s wiring harness along with insertion of the blocker plate between the EGR cooler and the vehicle exhaust system. The Finger Stick (named after its creator Jon aka “Fingers”) and a stainless steel blocker plate to prevent flow of exhaust through the EGR cooler. The Blocker package consists of 2 components. That is not to say this is a bad option, it’s just the old way and requires a functioning EGR motor and position sensor in order to function properly. If you are the type who likes to skip forward to the conclusion I’ll make my suggestion right here and now: EGR disable via Custom ECM ProgrammingĮGR Blocker We offer the EGR Blocker packages (this listing) as a cheap “band aid” approach to take care of these issues. This Tech Tip has been written in an attempt to educate and minimize time spent on the phone discussing something that shouldn’t be so complicated. Warning: Emissions tampering is unlawful on any motor vehicle used for on road purposes in the US. PLEASE CHECK YOUR VEHICLE TO MAKE SURE THIS IS THE CORRECT ONE - 8th Character in the VIN: "1" for LB7, "2" for LLY This circuit once installed in not detectable by GM scan tools "Finger Stick" comes complete with COLOR DETAILED wiring instructions!
This modification is required on most California and Northeastern emission trucks and some federal emission trucks to stop engine limp and turn off the check engine light due to the lowered back pressure of removing the front pipe. This "Finger Stick" will prevent a Service Engine Soon (check engine engine) light from illuminating and will prevent the ECM from displaying DTC codes related to an EGR modification or larger exhaust.
Lly egr blocker plate install code#
This EGR Override Circuit "Finger Stick" is For the GM 2500/3500 LLY 6.6L Duramax Diesel Engines (Years: 2004.5, 2005).This circuit modifies the MAF signal to the computer on the LLY engines (Not LB7, Not LBZ, Not LMM) to expected levels when the EGR is blocked off, modified or a big free flowing exhaust system (removing the cat) causes the ECM to set an EGR code and display the check engine light / service engine soon. STICK WILL NOT FIX A BROKEN EGR VALVE OR WORK TO COMPLETELY DELETE THE EGR SYSTEM! 04.5-05 Chevy Duramax Diesel EGR Code Blocker LLY Motor
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