DTC Description

If the PCM determines that the efficiency of the catalyst oxygen storage time has dropped below the 1.2 second threshold, the PCM sets a P0430 DTC.

DTC Detecting Condition

Item

Detecting Condition

Possible cause

DTC Strategy

Manipulates Airfuel and stores the times it takes for the pre and post converter oxygen sensors to switch.

1.

Catalyst Converter

EnableConditions

No disabling faults present

No instrumentation slews active

Engine Runtime longer than 580 sec.

Purge Concentration Learned

Airflow between 3 g/s and 10 g/s

Throttle closed less than 1.5%

Coolant Temp. between 70°C (158 °F) and 120°C (248 °F)

Ambient Temp. between -7°C (19.4 °F) and 105°C (221 °F)

Barometer greater than 72 kPa

Max number of test attempts less than 12

Closed Loop

Catalyst Temp. between 250°C (482 °F) and 950°C (1742 °F)

Fuel learning completed

Vehicle speed less than 3 kph (1.8 mph)

Not air fuel ramping

Max idle time (about 60 sec.) not exceeded

Threshold value

Oxygen Storage Time less than 1.2 sec..

Diagnosis Time

15 sec.

MIL On Condition

1 Driving cycle

Яндекс.Метрика