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Throttle Position Sensor

Turn ignition off and disconnect electrical connector at Throttle Position (TP) sensor. Insert a thickness gauge between throttle stop screw and throttle lever. Using an ohmmeter, check resistance values. See Fig 1. If values are not as specified in chart, adjust or replace TP sensor. (Perform adjustment before replacing).

Fig 1: Supra & 1986 1/2 Supra Checking Throttle Position Sensor
G42916Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
THROTTLE POSITION SENSOR RESISTANCE SPECIFICATIONS

Throttle Clearance Terminals Ohmmeter Reading
0" (0 mm) VTA - E2 (1) 200-800
.015" (.40 mm) (2) IDL - E2 2300 Or less
.020" (.50 mm) IDL - E2 0-100
.029" (.75 mm) (2) IDL - E2 Infinity
.035" (.90 mm) IDL - E2 Infinity
Fully Open VTA - E2 3300-10,000
Fully Open VTA - E2 (2) 3500-10,300
Fully Open Vc - E2 3000-7000
Fully Open Vc - E2 (2) 4250-8250
(1) 300-6300 on 1986 1/2 SUPRA
(2) Reading is for 1986 1/2 SUPRA
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