Toyota Corolla (E120): Mass or volume air flow circuit range/performance problem

Mass or volume air flow circuit

Circuit description

Other materials:

Inspection procedure
Hint Advanced timing over (valve timing is out of specified range) P0011 Retarded timing over (valve timing is out of specified range) P0012 If dtc p0011 or p0012 is displayed, check the vvt system circuit. Read freeze frame data using the hand–held tester o ...

Circuit description
Monitor description The ecm commands gearshift by turning the shift solenoid valves ”on/off”. When there is an open or short circuit in any shift solenoid valve circuit, the ecm detects the problem and the mil comes on. Illuminating the mil, the ecm performs the fail–safe and turns ...

Replacement
1. Remove combination meter assembly 2. Disconnect brake master cylinder push rod clevis  remove the clip and push rod clevis pin and wave washer, and disconnect the push rod clevis from the brake pedal. 3. Remove brake pedal support sub–assy Remove the bolt from the bra ...