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.
* Note: LEGAL IN CALIFORNIA ONLY FOR RACING VEHICLES THAT MAY NEVER BE USED, OR REGISTERED OR LICENSED FOR HIGHWAY OR OFF-ROAD USE.
Applications: 2004.5-2010 GM 6.6L Duramax LLY/LBZ/LMM
and also available for 2007.5-2010 Cummins 6.7L
WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov