Enable Condition

Rich → lean diagnosis response

ENABLE CONDITION CHART

Secondary Parameters	Enable Conditions
Battery voltage	> 10.9 V
A/F sub feedback control condition	Completed
Deceleration fuel cut time is 6 seconds or more.	Experienced
After fuel cut	≥ 2 sec.
Rear oxygen heater current calculation time	≥ 60 sec.
Rear oxygen heater current continuous time	≥ 30 sec.
Catalyst warm-up counter	≥ 9000

Lean → rich response diagnosis

ENABLE CONDITION CHART

Secondary Parameters	Enable Conditions
Battery voltage	> 10.9 V
A/F main feedback control condition	Completed
Deceleration fuel cut ≥ 6 seconds	Experienced
After fuel cut	≥ 2 sec.