MR2 Spyder L4-1.8L (1ZZ-FE) (2001)
If you have no TOYOTA hand-held tester, measure the voltage between terminals VPA and E2 of the ECM connector.
d. Inspect the air assist system.
1. Start the engine and check that the MIL does not light up.
2. Allow the engine to warm up to normal operating temperature.
3. Turn the A/C conditioning switch ON to OFF, and check the idle speed.
Idle speed (Transmission in neutral): 750 ± 50 rpm
NOTE: Perform an inspection without electrical load.
e. After checking the above (b) to (d), perform the driving test and check that there is no incongruity.
Component Inspection
INSPECTION
INSPECT THROTTLE POSITION SENSOR
Using an ohmmeter, measure the resistance between terminals VC and E2.
Resistance: 12 - 3.2 kohms at 20 °C (68 °F)
If the resistance is not as specified, replace the sensor.