The only mods I have is a CAI, and an axelback exhaust. When my car is idling the gas fumes are stronger than usual and the tip of my exhaust is black. The car doesn't seem like its as powerful as before. What can this be? Do you think it might be related to spark plugs or spark plug wires? Any input is appreciated, thanks
Jawshuuh
It could definiately be the plugs. If they are too worn the A/F mixture isn't getting burned off properly. I would definiately start with a new set of plugs if they haven't been changed in a while.
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