Circuit/System Testing
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 the scan tool parameter:MAP Sensor = 56 to 105 kPa (8.1 to 15.2 PSI)
- If not in the specified range
Refer to:DTC P0106, P0107, or P0108
- Go to next step: If in the specified range
- If not in the specified range
- Verify the following conditions do not exist:
- Q17 Fuel Injector - Restricted - Refer to: Fuel System Diagnosis
- Q38 Throttle Body - Vacuum leak
- Exhaust System - Cracked/Leaking/Loose Clamps/Missing components/Restricted - Refer to:Symptoms - Engine Exhaust
- Fuel - Contaminated/Poor Quality - Refer to:Alcohol/Contaminants-in-Fuel Diagnosis
- Fuel injectors which do not close completely. - Refer to:Fuel Injector Diagnosis
- Ignition System = Malfunction - Refer to:Electronic Ignition System Diagnosis
- Intake Air Duct - Blocked/Collapsed/Loose Clamps/Visible Damage
- MAF Sensor = Contamination of the measuring element
- Positive Crankcase Ventilation System - Leaking/Restricted - Refer to:Crankcase Ventilation System Inspection/Diagnosis
- Vacuum Hoses - Kinked/Leaking/Incorrect connection
- If a condition exists - Repair or replace as necessary
- Go to next step: If no condition exists
- Refer to:Symptoms - Engine Mechanical