Hey - welcome to the board

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What year car? The air pump is necessary for emissions, but with my 92 5.0L, we pulled the octane pin, and without the air pump (in place but gutted), it passed with flying colors. Put the octane pin back in, and it's a different story

. Depends on the year of your car, and the emission standards for that year.
OK - so my car isn't good for the environment, but it's only put 3000km's on in 1.5 years, so I'm not terribly concerned about the lack of a functioning air pump

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