I am currently fighting with a check engine light on my 2003 Wrangler 6-cyl: Code P0432. I had all the sensors changed with no luck, which brings me to a Catalytic Converter problem.
The question I have is will a Catalytic Convert issue cause me to have gas mileage problems? I have only had the Jeep for 2 months, and was fully aware of poor gas mileage... but I am getting about 210-220 miles per tank of gas... I think it has a 17 gallon tank so 12.5 miles/gallon. Is that about normal?