Mazda Repair Questions? Ask Mechanics for Answers ASAP
Do you happen to have the current p-codes that are setting the light?
Hello, what codes were stored for the checking engine light? The vehicle runs ok?
Ok P0420 indicates an issue with the Bank 1 catalytic convertor not cleaning properly ( emissions) and P0401 indicates a fault with the egr valve operation which is usually an issue with the DPFE sensor which measures egr flow. The cat code will set if the upstream oxygen sensor and downstream after cat, cat monitor sensor have the same readings, meaning the cat isnt cleaning the exhaust gases. so the cat convertor would need replaced.
Hello, do you need more help with this concern?
Hello, the question remains open until it is rated, if you need more help let me know.