LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 1991 >> Camry Base, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Engine Sensors & Switches >> Throttle Position Sensor
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Throttle Position Sensor

Turn ignition off. Unplug electrical connector at Throttle Position Sensor (TPS) on throttle body. Note terminal identification. See Fig 1-Fig 3 . Insert specified thickness feeler gauge between throttle stop screw and throttle lever. See TPS RESISTANCE SPECIFICATIONS  table. Using an ohmmeter, check for resistance or continuity. Replace or adjust TPS if not within specification.

TPS RESISTANCE SPECIFICATIONS

Application Type Clearance In. (mm) Terminals Tested Ohmmeter Reading
2.0L (W/O ECT) .020 (.51) "IDL" & "E1" Continuity
2.0L (W/O ECT) .020 (.51) "PSW" & "E1" No Continuity
2.0L (W/O ECT) .035 (.90) "IDL" & "E1" No Continuity
2.0L (W/O ECT) .035 (.90) "PSW" & "E1" No Continuity
2.0L (W/O ECT) Fully Open "IDL" & "E1" No Continuity
2.0L (W/O ECT) Fully Open "PSW" & "E1" Continuity
2.0L (W/ ECT) 0 (0) "VTA" & "E2" 200-800
2.0L (W/ ECT) .020 (.51) "IDL" & "E2" 2300 or Less
2.0L (W/ ECT) .028 (.70) "IDL" & "E2" No Continuity
2.0L (W/ ECT) Fully Open "VAT" & "E2" 3300-10,000
2.0L (W/ ECT) Fully Open "VC" & "E2" 3000-7000
2.5L 0 (0) "VTA" & "E2" 300-6300
2.5L .012 (.30) "IDL" & "E2" 2300 or Less
2.5L .028 (.71) "IDL" & "E2" No Continuity
2.5L Fully Open "VTA" & "E2" 3500-10,300
2.5L Fully Open "VC" & "E2" 4250-8250
Fig 1: Throttle Position Sensor Terminal ID (2.5L)
G118909Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: Throttle Position Sensor Terminal ID (2.0L W/O ECT)
G118911Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 3: Throttle Position Sensor Terminal ID (2.0L W/ECT)
G118910Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002