EG-555 ENGINE – 2JZ-GTE ENGINE TROUBLESHOOTING 2 Check throttle position sensor(s). For Throttle Position Sensor 2 (VTA1) 4 (E2) 3 (IDL1) For Sub-Throttle Position Sensor 1 (E2) 2 (IDL2) 3 (VTA2) P11452 P12008 P (1) Remove throttle body. (See page EG-291) (2) For throttle position sensor, apply vacuum to throttle opener. (See page EG-292) C Measure resistance of each terminal as below table when the throttle valve is opened gradually from the closed condition. OK Terminal Throttle Valve Fully Closed Fully Opened Throttle Position Sensor 2 (VTA1) - 4 (E2) 0.3 ~ 6.3 kΩ 2.4 ~ 11.2 kΩ 3 (IDL1) - 4 (E2) Less than 0.5 kΩ 1 MΩ or higher Sub throttle Position Sensor 3 (VTA2) - 1 (E2) 0.3 ~ 6.3 kΩ 2.0 ~ 10.8 kΩ 2 (IDL2) - 1 (E2) Less than 0.5 kΩ 1 MΩ or higher Hint Resistance between terminals 2,3 (VTA1,2) and 4,1 (E2) should increase gradually in accordance with the throttle valve opening angle. OK NG Adjust or replace throttle position sensor(s). (See page EG-292) 3 Check for open and short in harness and connector between engine control module and throttle position sensors(s) (See page IN-30). OK NG Repair or replace harness or connector. ↓ Check and replace engine control module.