Hi,
2018 CX-9 147k kms throwing P0303 code only in idle. Plugs and injectors changed and good. Mazda nor I can figure out problem. Mazda says it may be carbon on valve or in chamber, anyone have any ideas because I have no solution? It drives fine but I cannot sell like this and don't want engine dammage. Thanks...
2018 CX-9 147k kms throwing P0303 code only in idle. Plugs and injectors changed and good. Mazda nor I can figure out problem. Mazda says it may be carbon on valve or in chamber, anyone have any ideas because I have no solution? It drives fine but I cannot sell like this and don't want engine dammage. Thanks...
