Circuit/System Testing
WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. However, it is still accessible from the selected car via links, so may be relevant.
Verify none of the conditions listed below exist:
P2096
- Air intake duct collapsed or restricted.
- Air filter dirty or restricted.
- Objects blocking the throttle body.
- Excessive fuel in the crankcase. Change engine oil as necessary.
- Rich fuel injectors. Refer to Fuel Injector Diagnosis .
- Excessive fuel system pressure. Refer to Fuel System Diagnosis .
- Fuel contamination. Refer to Alcohol/Contaminants-in-Fuel Diagnosis .
- Fuel saturation of the evaporative emissions (EVAP) canister
- Stuck open or leaking EVAP purge valve
- Restricted exhaust. Refer to Symptoms - Engine Exhaust .
- Improper operation of the crankcase ventilation system.
P2097
- Exhaust system leaks. Refer to Symptoms - Engine Exhaust .
- Split, kinked, or improperly connected vacuum hoses
- Insufficient fuel in the tank
- Leaks in the air induction system or air intake ducts
- Missing air filter element
- Cracked evaporative canister
- Evaporative pipes plugged, obstructed, or leaking
- Crankcase ventilation system leaking.
- Engine vacuum leaks
- Low fuel system pressure. Refer to Fuel System Diagnosis .
- Contaminated fuel. Refer to Alcohol/Contaminants-in-Fuel Diagnosis .
- Lean fuel injectors. Refer to Fuel Injector Diagnosis .
- If a condition is found
Repair as necessary.