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It’s also possible to strive putting high take a look at fuel in your tank (when empty, so that you fill it up) and drive with high test gasoline just for the one time. This has been recognized to filter the catalytic converter at times, and the issues might be resolved. It worked for me, and the light stayed off now for 2 years. I don’t reply by e mail Marty, I haven’t got the time to reply the various queries I get by email, so …