I've been having a rotten egg smell coming from the exhaust. I think its the CAT. I used to use premium exxon gas and switched to premium shell gas. The smell good better for a while, but now its back. I don't always smell it, only after hard acceleration or aggressive downshifts. I have a cold air intake and aftermarket exhaust. The car is a 2002 Chevy Camaro Z28 5.7L manual. I don't drive the car often in the winter, but it gets used at least 2-3 days/week in the summer. I have a short commute ~10 miles (30 mins of local roads). I didn't have this problem when I used to have a 50 mile highway commute. It has about 43k miles on it. Could the cold air intake and exhaust cause the car to run rich? I did find a leak in the intake that I fixed recently.
A friend gave me a product made by Solder-It called "The Original Catalytic Converter Cleaner and Deodorizer". I'm suppose to put this in the gas and run it through the system. Has anyone used this product or something similar with any success?
A friend gave me a product made by Solder-It called "The Original Catalytic Converter Cleaner and Deodorizer". I'm suppose to put this in the gas and run it through the system. Has anyone used this product or something similar with any success?