Diagnostic Procedure
Current data inspection
1.

Monitor current data after engine warming up.

1) "Throttle Position Sensor 1 Voltage" and "Oxygen Sensor Bank1/Sensor1" at idle ("D" range)

2) "Throttle Position Sensor 1 Voltage" and "Oxygen Sensor Bank1/Sensor1" at stall test.

■ Specification

caution

This current data is nothing but an example at certain condition. Thus, the real current data could be different from this example.

Inspection procedure

Symptom

Inspection procedure

Case1

● HO2S is high continously(Lean).

● Go to "Fuel supply state inspection" procedure.

● Go to "Injector inspection" procedure.

Case2

● HO2S is low continously(Rich).

● Go to "Air cleaner inspection" procedure.

● Go to "Vacuum leakage inspection" procedure.

● Go to "Catalytic converter inspection" procedure.

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