Bad Hesitation under heavy throttle, help
Hey everyone I am new here (obviously), I have a 2013 MP412C with a tune and catless downpipes/exhaust. I was throwing some check engine codes (2177,2187,2195,2197) which my tuner addressed by changing an 02 sensor that seemed to be malfunctioning. This cleared the check engine codes but did not fix the hesitation issue. Any ideas? He is checking for boost leaks, but I was also thinking plugs/coils perhaps...maybe even fuel injectors. Any advice/help/input is greatly appreciated!