‘dixie verse gy TECH TIPS Dixie Part Numbers: S-6263 S-6265 S-6276 S-6281 S-6282 S-6558 TBA Applications: 2007 — 2009 Audi A6 with BVJ engine code 2007 — 2009 Audi A8 with BVJ engine code 2007 — 2009 Audi S6 with BXA engine code 2007 — 2009 Audi S8 with BSM engine code 2007 — 2009 Audi Q7 with BAR engine code 2009 Audi R8 with BHY engine code 2009 Audi S5 with CAVA engine code Condition: The operator of the vehicle may complain that the engine will not start. When checking the vehicle the technician may find the following diagnostic trouble codes stored in the system: – P0087 Fuel/rail system pressure too low. – P0088 Fuel/rail system pressure to high. – P310B Low fuel pressure regulation, fuel pressure outside of tolerance. Cause: A potential cause for the above condition is an incorrectly installed or malfunctioning pressure relief valve. Under normal operating parameters the fuel/rail pressure may reach 140 bar (2030 PSI), however with a damaged or incorrectly installed relief valve the pressure can increase this value (or be too low for the system) and prevents the starting authorization. Correction: Follow the manufacturer’s diagnostic and repair procedures if applicable. REV: 20110509 Courtesy of APRA TSB_665.docx Dixie Tech Tips are intended for use by professional technicians, and are not for the general public. They are written to inform technicians of conditions that may exist or as a guide to aid in diagnosing and servicing a vehicle. All references to original equipment manufactures, vehicle manufactures and any other Trade Mark names are for the sole purpose of identifying the vehicle and or part that the Tech Tip applies to. This document is property of Dixie Electric Ltd. and is not to be copied or distributed with out written permission.