2TR-FE EMISSION CONTROL SERVICE DATA

Air pump assembly:
Connection Specified Condition

AI System Operation ON

(soon after the cold engine starts)

 10 to 40 A

AI System Operation OFF

(engine is idling)

 Below 1 A
Air switching valve:
Tester Connection Specified Condition
1-2 4.5 to 5.5 Ω at 20°C (68°F)
Vacuum switching valve:
Tester Connection Specified Condition
1-2 26 to 30 Ω at 20°C (68°F)
1 - Body ground 10 MΩ or higher
2 - Body ground
Air fuel ratio sensor:
Tester Connection Specified Condition
1 (HT) - 2 (+B) 1.8 to 3.4 Ω at 20°C (68°F)
Heated oxygen sensor:
Tester Connection Specified Condition
1 (HT) - 2 (+B) 11 to 16 Ω at 20°C (68°F)