Condition for fault identification

Test condition:

The fault is recognized when the dynamic signal from the post-catalyst oxygen sensor displays excessive lag.

Potential problem source(s):

• Defective wiring harness
• Oxygen sensor behind catalytic converter defective

Terminal condition: none

Voltage condition:

• Onboard electrical system voltage between 9 V and 16 V

Temperature condition:

• None

Time condition:

• None

Other conditions:

• Engine in overrun phase 5 times