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Home >> GMC >> 1989 >> Forward Control 7.4 W, Standard >> Repair and Diagnosis >> Engine Performance >> Adjustment >> Tune-Up - V8 >> Adjustments >> Throttle Position Sensor (TPS) >> Notes
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Throttle Position Sensor (TPS): Notes

NOTE: "SCAN" tester may also be used to perform TPS adjustment. No throttle position sensor is used on 7.4L Carbureted engine.
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