1TR-FE EMISSION CONTROL SERVICE DATA

AIR PUMP
AI System (Air Pump) Operation 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 Condition Specified Condition
1 - 2 20°C (68°F) 4.5 to 5.5 Ω
PURGE VALVE
Tester Connection Condition Specified Condition
1 - 2 20°C (68°F) 26 to 30 Ω
AIR FUEL RATIO SENSOR
Tester Connection Condition Specified Condition
1 (HA1A) - 2 (+B) 20°C (68°F) 1.6 to 3.2 Ω
1 (HA1A) - 4 (A1A-) Always 10 kΩ or higher
HEATED OXYGEN SENSOR
Tester Connection Condition Specified Condition
1 (HT) - 2 (+B) 20°C (68°F) 5.9 to 7.3 Ω
1 (HT) - 4 (E1) Always 10 kΩ or higher