Toyota Corolla (E120): Oxygen sensor circuit malfunction

Inspection procedure

Circuit description

Other materials:

Evap monitor (vacuum pressure monitor) (continued)
Preconditions The monitor will not run unless: mil is off. Fuel level is approximately 1/2 to 3/4. Altitude is 7800 feet (2400 m) or less.* Engine coolant temperature (ect) is between 40°f and 95°f (4.4 °C and 35 °C). Intake air temperature (iat) is between 40°f and 95 ...

Customer problem analysis
Hint: in troubleshooting, the problem symptoms must be confirmed accurately, meaning that all preconceptions must be set aside in order to make an accurate judgement. To ascertain what the problem symptoms are, it is extremely important to ask the customer about the problem and cond ...

Automatic transaxle assy (atm)
Precaution  The automatic transaxle is composed of highly precision–finished parts, necessitating careful inspection before reassembly because even a small nick could cause fluid leakage or affect the performance. The instructions here are organized so that you work on only o ...