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general information - Martin Nez

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4-70 FI SYSTEM DIAGNOSISStep 21) Turn the ignition switch to OFF.2) Remove the air cleaner box and lift up the throttle body.(5-13)3) Disconnect the STP sensor coupler.4) Install the test harness to the STP sensor.5) Check the continuity between each terminal and ground. STP sensor continuity: ∞ Ω (Infinity)(Terminal – Ground) 09900-25008: Multi-circuit tester set09900-28630: TPS test wire harness6) If OK, then measure the STP sensor resistance at the wireterminals (between terminal B and terminal C).7) Close and open the secondary throttle valve by finger, andmeasure the valve closing and opening resistance.22STPY/WRB/BrECM STP sensor resistanceSecondary throttle valve is closed: Approx. 0.5 kΩSecondary throttle valve is opened: Approx. 3.9 kΩ Tester knob indication: Resistance (Ω)22

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