CLEAN GUM AND SOFT CARBON DEPOSIT FROM FUEL DELIVERY COMPONENTS AND INSIDE COMBUSTION CHAMBER. PERFORM COMPLETE FUEL PRESSURE AND VOLUME TEST. ROAD TEST VEHICLE.
FOUND: P0068 – MAF, THROTTLE POSITION CORRECTION P2296 – FUEL PRESSURE REGULATOR TO CONTROL HIGH P2294 – FUEL REGULATOR TO CONTROL CIRCUIT RECOMMEND: PERFORM FUEL INDUCTION SERVICE, REPLACE BOTH HIGH / LOW PRESSURE FUEL SENSORS AND RETEST SYSTEM FOUND: AFTER REPLACEMENT OF FUEL PRESSURE SENSOR SYSTEM CAN BE SEEN TO BE RUNNING TO LEAN, PRESSURE LEAKING INTERNALLY IN THE HIGH PRESSURE FUEL PUMP RECOMMEND: REPLACE HIGH PRESSURE FUEL PUMP AND RETEST SYSTEM