All the AIR pump does it inject a little bit of exhaust into the heads to help with start-up, that's it. The rest of the time, it does nothing
(This is my 12,000th post
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33% ALEROMOD OWNER!!
2000 Olds Alero 3400 SFI 14.53 @ 94.93
1985 Olds Delta 88 307 SBO 17.96 @ 76.99
2007 Volvo V50 T5 6M 15.782 @ 89.12
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