Chevy/Gm Lly/Lbz Release Valve Shim Kit-Eliminates Low Pressure Fuel Rail Trouble Codes Such As 1093 And Maintains Requested Fuel Pressure During Full Throttle W/Hot Program Enhancements
The Release Valve Shim Kit increases the pressure needed to “pop off” the pressure relief valve (PRV). This means that the available fuel rail pressure remains high, as requested by the engine computer, during full-throttle driving and reduces the fuel flow through the fuel return system.
It eliminates potential low fuel rail pressure DTC codes P1093 or P0087 (low fuel rail pressure during power enrichment) that are caused by insufficient pressure relief valve spring pressure opening, returning fuel to the fuel tank.
GM Duramax 2004.5 - 2010 LLY/LBZ/LMM
Dodge Cummins 2008-2010 6.7
UPC Company Prefix: 81050502
UPC Code - 14: 00810505022151
UPC Code - 12: 810505022151
Please call with additional questions and concerns.
Note: LEGAL IN CALIFORNIA ONLY FOR RACING VEHICLES THAT MAY NEVER BE USED, OR REGISTERED OR LICENSED FOR HIGHWAY OR OFF-ROAD USE.