C3: Check For O2 Sensor Failure
With the conditions held as C2, suddenly decelerate to idle.
Has the voltage dropped to 400mV or less?
Yes
GO to C4, C4: Check For O2 Sensor Failure
No
Renew O2 sensor and reconnect plug(s).
GO to C6, C6: Stop
With the conditions held as C2, suddenly decelerate to idle.
Has the voltage dropped to 400mV or less?
Yes
GO to C4, C4: Check For O2 Sensor Failure
No
Renew O2 sensor and reconnect plug(s).
GO to C6, C6: Stop