Throttle Position (TP) Sensor Continuity: Adjustment

Turn ignition off. Ensure throttle valve is in closed position. Disconnect TP sensor connector. Connect ohmmeter between terminals "C" and "D" of TP sensor connector. See Fig 1 or Fig 2 . Insert a feeler gauge of specified thickness between throttle lever and throttle stop screw. See TP SENSOR CONTINUITY (MILLENIA & 626 2.5L) table.
Loosen TP sensor screws. Rotate TP sensor until ohmmeter indicates continuity as specified. See TP SENSOR CONTINUITY (MILLENIA & 626 2.5L) table. Tighten TP sensor screws. Open throttle valve fully a few times. Recheck TP sensor adjustment. If TP sensor is not adjusted as specified, replace TP sensor.

Fig 1: Identifying TP Sensor Connector Terminals (Millenia 2.3L)

Courtesy of MAZDA MOTORS CORP.

Fig 2: Identifying TP Sensor Connector Terminals (Millenia 2.5L & 626 2.5L)

Courtesy of MAZDA MOTORS CORP.

TP SENSOR CONTINUITY (MILLENIA & 626 2.5L)

Test Condition ⁽¹⁾

Continuity Between Terminals "C" & "D"

Millenia

2.3L

.008" (.19 mm)

Yes

.015" (.37 mm)

2.5L

.006" (.15 mm)

Yes

.020" (.50 mm)

626

2.5L

.006" (.15 mm)

Yes

.020" (.50 mm)

⁽¹⁾	Insert feeler gauge of specified thickness between throttle lever and throttle stop screw.