The problem I have is that the check engine light has come on twice. The first time I replaced the 02 sensor and the light went off. The second time I replaced the spark plugs and lead wires, and the light went off for about 300 miles and came on again. I am afraid that I need a new catalytic converter. Has anyone else had this problem? If so, how much do new caty's cost? Thank you all.
(and yes I have checked the gas cap!!!











