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Throttle Position Sensor (Metro A/T)

Disconnect TPS electrical connection. Install proper thickness feeler gauge between stop screw and lever. Using ohmmeter, check continuity or resistance between designated terminals. See Fig 1 for terminal identification. Adjust or replace TPS if not within specification. See THROTTLE POSITION SENSOR (TPS) RESISTANCE  .

THROTTLE POSITION SENSOR (TPS) RESISTANCE (METRO (A/T)

Application & Condition Ohms
Between Terminals A & B (1) Continuity Between
Between Terminals A & B (2) No Continuity
Between Terminals A & B (3) Continuity
Between Terminals A & D (3) 4370-8130
Between Terminals A & C (3) 240-1140
Between Terminals A & C (4) 3170-6600
(1) With .012" (.30 mm) feeler gauge installed between stop screw and lever.
(2) With .035" (.89 mm) feeler gauge installed between stop screw and lever.
(3) Throttle valve at idle position.
(4) Throttle valve at fully open position.
Fig 1: Throttle Position Sensor Terminal ID (Metro A/T)
G90G18008Courtesy of GENERAL MOTORS CORP.