Hi,

Thanks for the reply.

Would the fact that when i pull the spark plugs they look normal (no black deposits, just a good tan color) rule out the rotor? I have not pulled the rotor out.

As for the 02 sensor -- woldn't the check engine light come on if it was not working right? I know the light works during starting. Perhaps the 02 sensor can fail and not trigger an alert?

chicago124