Circuit/System Testing

Inspect for the conditions listed below:

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 .
Improperly operating crankcase ventilation system. Refer to Crankcase Ventilation System Inspection/Diagnosis .

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 and air intake ducts
Missing air filter element
Cracked evaporative canister
Evaporative pipes plugged, obstructed, or leaking
Crankcase ventilation system leaking. Refer to Crankcase Ventilation System Inspection/Diagnosis .
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 .