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Just started running rich

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Old 02-05-2009, 08:26 AM
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Default Just started running rich

My car suddenly started running very rich without any new mods. The only other change in performance seems to be a little more surging than usual, but I have no check engine light or other indication of anything malfunctioning. Anyone know of anything that could cause this without tripping a code? Thanks guys.
Old 02-05-2009, 09:37 AM
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Dirty MAF can do this and will not throw codes.
Old 02-05-2009, 10:41 AM
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have you verified this with a wideband?




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