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Buick
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1990
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Century Custom, 4D Wagon, 3.3 N, 4T60/ME9
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Repair and Diagnosis
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Engine Performance
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Specifications
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Engine Controls - Specifications - 4-CYL
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Fuel System
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Throttle Position Sensor (TPS)
Throttle Position Sensor (TPS)
NOTE:
On 4-cylinder models, TPS is not adjustable. For further testing, refer to SELF-DIAGNOSTICS article in this section.