Throttle Position Sensor

Ensure ignition is off. Disconnect electrical connector from Throttle Position (TP) sensor. TP sensor is located on throttle body. Note terminal identification on TP sensor. See Fig 1.
Apply vacuum to throttle opener. Insert specified thickness feeler gauge between throttle stop screw and throttle lever, and check resistance or continuity. See TP SENSOR RESISTANCE SPECIFICATIONS table. Replace or adjust TP sensor if not within specification.

TP SENSOR RESISTANCE SPECIFICATIONS ⁽¹⁾

Application Type

Clearance In. (mm)

Terminals Tested

Ohmmeter Reading

4.5L

Fully Closed

VTA & E2

200-5700

.020 (.50)

IDL & E2

2300 Or Less

.030 (.75)

IDL & E2

No Continuity

Fully Open

VTA & E2

2000-10,200

VC & E2

2500-5900

⁽¹⁾	Apply vacuum to throttle opener before testing TP sensor.

Fig 1: Testing Throttle Position Sensor