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Home >> Chevrolet >> 1990 >> Caprice Base, 5.7 7 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 4.3L TBI >> Pcm/BCM Code Charts >> Code 45, Rich Exhaust Indication >> TPS

Code 45, Rich Exhaust Indication: TPS

An intermittent TPS output will cause system to operate rich due to a false indication of engine acceleration.

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