1986 Mazda 323 BaseFACTORY OEM SERVICE PROCEDURE

Throttle Position Sensor

Disconnect throttle position sensor. Gradually open throttle valve and check continuity between terminals. See THROTTLE POSITION SENSOR SPECIFICATIONSΒ  table.

Fig 1: TPS Connector
G50D01652
THROTTLE POSITION SENSOR SPECIFICATIONS

Clearance Between Throttle Adjusting Screw And Stop Lever Continuity Between IDL-TL Continuity Between PSW-TL
.02" (.5 mm) Yes No
.03" (.7 mm) No No
Wide Open Throttle No Yes
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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