1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Acv?

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Old 03-17-03, 09:04 PM
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Acv?

I have a 1980 RX7 and it backfires bad between shifts, I think its a faulty air control valve. Is there any way to remove the valve altogether and cure the backfire without causing any other problems?
Thanks
Old 03-17-03, 09:12 PM
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sure replace the cats with a straight pipe or header, remove the airpump and fabricate an ACV block-off plate.
I'm not sure of the consequences of removing and blocking the ACV only.
Old 03-17-03, 10:02 PM
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Your emissions.... if you remove it... and go straight pipe and cover plate.... just buy a brand new one....
Old 03-17-03, 10:28 PM
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Use the search button for this corner...there's a cheaper way to do it, but I don't have my "cheat" sheet here at work to get you straight to it. I did it last summer to get the '84 to pass emissions....dead ACV....
Old 03-18-03, 08:17 PM
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I tried blocking off my acv and my car hated it, wouldn't idle, it kept dying, i don't know if i blocked it off wrong or what, but my car is like your's backfires alot.
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