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EC-156 < DTC/CIRCUIT DIAGNOSIS > [VQ35DE] TROUBLE DIAGNOSIS - SPECIFICATION VALUE • Disconnection or cracks in EVAP purge hose, stuck open EVAP canister purge volume control solenoid valve • Malfunctioning seal in rocker cover gasket • Disconnection, looseness, or cracks in hoses, such as a vacuum hose, connecting to intake air system parts • Malfunctioning seal in intake air system, etc. >> GO TO 30. 29. CHECK “A/F ALPHA-B1”, “A/F ALPHA-B2”, AND “B/FUEL SCHDL” Select “A/F ALPHA-B1”, “A/F ALPHA-B2”, and “B/FUEL SCHDL” in “SPEC” of “DATA MONITOR” mode, and check that each indication is within the SP value. YES >> INSPECTION END NO >> Detect malfunctioning part according to . 30. CHECK “B/FUEL SCHDL” Select “B/FUEL SCHDL” in “SPEC” of “DATA MONITOR” mode, and then check that the indication is within the SP value. YES >> INSPECTION END NO >> Detect malfunctioning part according to . |