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Home >> Mazda >> 1999 >> Protege ES L4-1839cc 1.8L DOHC >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Throttle Position Sensor >> Adjustments >> Using the SSTs (NGS Tester)
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Using the SSTs (NGS Tester)




CAUTION:
- Adjusting the TP sensor with the throttle adjusting screw (TAS) can adversely affect the engine. Do not adjust the TP sensor with the TAS.
- Since the TP sensor is adjusted by the manufacturer, adjusting the TP sensor excessively can adversely affect the engine. Do not adjust the TP sensor excessively.

1. Verify that the throttle valve is at the CTP.
2. Disconnect the TP sensor connector.
3. Turn the ignition switch on.




4. Measure and record the voltage of the disconnected harness side connector terminal A using a voltmeter.
- If not as specified, inspect the PCM terminal 90 voltage.

Specification: 4.5 - 5.5 volts

5. Turn the ignition switch off.
6. Reconnect the TP sensor connector.




7. Loosen the TP sensor screws.

TP Sensor Adjustment Using the SST (NGS Tester)




1. Connect the SST (NGS tester) to the DLC-2.
2. Verify that the throttle valve is at the CTP.
3. Turn the ignition switch on.
4. Select the "PID/DATA MONITOR AND RECORD" function on the NGS tester display and press TRIGGER.
5. Select "TP volts" on the NGS tester display and press START. Rotate the throttle link by hand and adjust the "TP volts" voltage to specification.




Specification (At CTP)

6. Tighten the attaching screws.

Specification
1.6 - 2.3 Nm (16 - 24 kg.cm, 14 - 20 in.lb)

7. When the throttle valve is at the WOT, verify that the "TP volts" voltage is with in the specification.
- If not as specified, replace the TP sensor.




Specification (At WOT)

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