Poor Performance, Hesitation on Acceleration, Possible Stalling on Mercury Topaz

Outdated software in the engine control processor can cause poor engine performance, hesitation on acceleration, and possible stalling problems. The processor will need to be replaced to get the updated calibration.

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Average mileage: (–)
5 model years affected: 1990, 1991, 1992, 1993, more1994
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