Circuit/System Verification
WARNING: This page is about a different car, the 2019 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition - On / Vehicle - In Service Mode
- Verify DTC P0106, P0107, P0108, P2227, P2228, P2229, P2230 is not set.
- If any of the DTCs are set
- Go to next step: If none of the DTCs are set
- Verify the following conditions do not exist:
- Loose clamps, cracks, or other damages to the intake system.
- Clogged air cleaner.
- Clogged catalyst.
- Vacuum hoses with kinks, leaks, or improper connections.
- Leaking or restricted positive crankcase ventilation.
- Leaks at the intake manifold or throttle body.
- Leaking, missing, or damaged O-ring on the components listed below:
- B75C Multifunction Intake Air Sensor
- B74 Manifold Absolute Pressure Sensor
- If a condition exists
Repair or replace as necessary.
- Go to next step: If no condition exists
- Verify the scan tool parameter:
- BARO Sensor = Altitude Versus Barometric Pressure - The value should be within the range listed in the table.
- MAP Sensor = Altitude Versus Barometric Pressure - The value should be within the range listed in the table.
- If not in the specified range
- {BARO Sensor}Refer to:DTC P2227-P2230 .
- {MAP Sensor}Refer to:DTC P0106 .
- Go to next step: If in the specified range
- All OK.