1994 Mazda 929FACTORY OEM SERVICE PROCEDURE

Throttle Position (TP) Sensor

WARNING: This page is about a different car, the 1994 Mazda MPV. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: For information on connector terminal identification and test conditions specified in the following tables, see ADJUSTMENTS article in the ENGINE PERFORMANCE section.
TP SENSOR VOLTAGE

Red Wire Volts Blue Wire (1) Volts (2) Blue Wire Volts
4.50-4.59 .37-.54 3.58-4.23
4.60-4.69 .38-.55 3.66-4.32
4.70-4.79 .39-.56 3.74-4.41
4.80-4.89 .40-.57 3.82-4.51
4.90-4.99 .40-.58 3.90-4.60
5.00-5.09 .41-.60 3.97-4.70
5.10-5.19 .42-.61 4.05-4.79
5.20-5.29 .43-.62 4.13-4.88
5.30-5.39 .44-.63 4.21-4.98
5.40-5.49 .44-.64 4.29-5.07
5.50 .44-.66 4.29-5.17
(1) Closed throttle.
(2) Wide Open Throttle.
TP SENSOR CONTINUITY

Test Condition (1) (2) Continuity
.02" (.5 mm) Yes
.028" (.7 mm) No
(1) Insert feeler gauge of specified thickness between throttle lever and throttle stop screw.
(2) Check continuity with ohmmeter connected between TP sensor terminals "C" and "D".
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:

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