Nascarnut9
New Member
Hey everyone I have an issue with possible a waste gate or pop off valve. 2018 SHO stock, it runs well and gets good gas mileage. When I let off the throttle it sounds like a semi when it releases air for the air brakes. Now the check engine light is on for catalytic converter running lean and also saying an exhaust leak on the same bank. Anyone have an idea of what it is and how to fix it? Thanks in advance and I appreciate your time.
