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Almost passing emissions

1760 Views 2 Replies 3 Participants Last post by  ccbnissan
I’ve been all over the forums searching for a solution but can’t seem to find one that works I have a 89 240sx SOHC I’m barely not passing emissions and was wonder if anyone had suggestions on anything I can do to pass I’m failing due to CO and HC
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1 - 1 of 3 Posts