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Throttle Position Sensor (TPS)

Turn ignition off and disconnect electrical connector at TPS. 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 TPS.

Fig 1: Checking Throttle Position Sensor Perform adjustment before replacing.
G42914Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
TPS RESISTANCE SPECIFICATIONS

Throttle Clearance Terminals Ohms
0" (0 mm) VTA - E2 200-800
.022" (.57 mm) IDL - E2 Less Than 2300
.033" (.85 mm) IDL - E2 Infinity
Fully Open VTA - E2 3300-10,000
Fully Open Vcc - E2 3000-7000