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Throttle Position (TP) Sensor

NOTE: See Fig 1 to identify TP sensor terminals.
THROTTLE POSITION (TP) SENSOR RESISTANCE

Measure Resistance Between Terminals Ohms
E2 & IDL (1) 0-2300
E2 & IDL (2) Infinity
E2 & VC 2500-5900
E2 & VTA (3) 200-5700
E2 & VTA (4) 2000-10,200
(1) With .016" (.40 mm) feeler gauge installed between throttle stop screw and lever.
(2) With .035" (.89 mm) feeler gauge installed between throttle stop screw and lever.
(3) With zero clearance between throttle stop screw and lever.
(4) Throttle valve at fully open position.
Fig 1: Identifying Throttle Position Sensor Terminals
G93F78118Courtesy of GENERAL MOTORS CORP.