Re: 98 contour 2.5l dohc misfire/rough idle
Ditto, codes would really help. You're right, I was thinking about the downstream one. Does the IAC throw a code?
Basically, you are having a problem with air, thats all these units do.
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'98 Contuor SE, 2.5 V6 Auto Silver
'08 Altima 2.5S, Auto Super Black
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