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P0299-BOOST IN RANGE LOW (CONTINUED) 3. TURBO CHARGER DAMAGED Disconnect the air cleaner connection to the turbo charger. Using the service manual as a guide, visually inspect the turbo charger blades and turbo housing for signs of dam- Was any damaged found? Yes >> Replace The Turbo charger. Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELEC- No >> Go To 4 4. INTAKE AIR SYSTEM LEAK Using Miller Special tool # 9022, pressurize the intake air system and inspect for leakage. Use the service manual as a guide. Were any leaks detected? Yes >> Repair leaking intake air system. Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELEC- No >> Go To 5 5. BOOST PRESSURE SENSOR Using the scan tool, compare the boost pressure sensor reading with the ambient air pressure sensor with the igni- Are the boost pressure and ambient air pressure sensors within 6 in hg of each other? Yes >> Go To 6 No >> Replace the Boost pressure sensor. Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELEC- 6. BOOST PRESSURE SENSOR Turn the ignition off. Install Miller special tool #9022. Ignition on, engine not running. Use the scan tool and compare boost pressure reading to the regulated air pressure for tool #9022. NOTE: The reading on the boost pressure sensor may be slightly lower than the regulated pressure. Does the boost pressure sensor reading increase with the regulated air pressure? Yes >> Go To 7 No >> Replace the Boost Pressure sensor. Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELEC- 9 - 1194 ENGINE - ELECTRICAL DIAGNOSTICS - DIESEL DR/DH |