i only have CBE. and o2 sensor look fine coz the shop didn't touch it. and the code is P0456. but i wonder just install CBE and break the gas cap same time. i get light after several day. when i reset it the light back after 50 80 miles.
i do have K&n drop in. but it some months before the CBE. does it affect to???
Last edited by hoangtienvo; 02-21-2016 at 01:03 PM.
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