MX-5 Miata L4-1.8L DOHC (1996)
USING THE NGS
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Connect the SSTs (NGS) to the data link connector-2.
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Select the PID/DATA MONITOR AND RECORD function of the NGS.
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Verify that the throttle valve is at the closed throttle position.
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Loosen the attaching screws.
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Select the 'TP V" on the NGS display. The NGS measures and shows the voltage.
Specification:
Closed throttle position: 0.1 - 1.1 V
Wide open throttle: 3.1 - 4.5 V
(Verify that the voltage increase is directly proportioned to the throttle valve opening angle.)
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Tighten the attaching screws.
Tightening torque: 1.6 - 2.3 Nm (14 - 20 in lbs.)
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If not adjusted, inspect the throttle position sensor harness.
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If the harness is OK, replace the throttle position sensor.
REPLACEMENT
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Disconnect the throttle position sensor connector.
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Remove the attaching screws.
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Remove the throttle position sensor.
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Verify that the throttle valve is fully closed.
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Open the throttle valve slightly and catch the tang of the throttle body on the throttle position sensor plastic tabs. Align tang A on throttle body
with tab A on throttle position sensor. Note tangs on the throttle body mate with the tabs on the throttle position sensor on the side of the tab
without a slot.
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Position the throttle position sensor on the throttle body so that the mounting holes align.
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Install and hand tighten the attaching screws.
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Release the throttle.
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Adjust the throttle position sensor output voltage and closed throttle position switch.