Rich or lean?

98gtblue

New Member
Dec 15, 2003
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houston
Changed coil packs to screamin demon ones and regapped spark plugs. When checking spark plugs, the four plugs from the driver side were a brownish color. On the passenger side all had a white almost chalk look to it. The two sides were completely opposite from each other. What does this mean? Driver side: dark passenger side: white. Please help.