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#1 |
Conservative Individualist
Join Date: May 1997
Location: Wherever I need to be
Posts: 7,487
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![]() Your high CO (carbon monoxide) emissions are probably due to not enough air mixing with the fuel. Try a new air filter (or clean a K&N) and replace the PCV and screen. You may also have a leaking injector(s) or a bad sensor: (coolant, throttle position). At that close to the maximum you'll probably fail the next test so I would attempt to find and try to minimize the CO levels you're at now. A new air filter may do it.
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5.0 Mustang Owner 1990 - 2005 |
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