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If your 1991 Mercury Capri with a 1.6L engine smells rich, it may indicate that the engine is running too rich, meaning it's getting too much fuel relative to air. This could be due to a faulty fuel pressure regulator, a clogged air filter, or issues with the fuel injectors. Additionally, check for vacuum leaks that could affect the air-fuel mixture. Addressing these issues should help lean out the fuel mixture and reduce the rich smell.

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1mo ago

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