Throttle Position Sensor

Ensure ignition is off. Disconnect electrical connector from Throttle Position (TP) sensor located on throttle body. Note terminal identification. 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 THROTTLE POSITION SENSOR RESISTANCE SPECIFICATIONS table. Replace or adjust TP sensor if not within specification.

THROTTLE POSITION SENSOR RESISTANCE SPECIFICATIONS

Application Type

Clearance In. (mm)

Terminals Tested

Ohmmeter Reading

4.5L ⁽¹⁾

0 (0)

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