What are the symptoms of a faulty wastegate. I have an 2011 SS Camaro with an IPS TT kit. We tuned it on the dyno about 6mos ago and everything was great and all of a sudden there is bucking at cruising speed and the A/F goes from 13 to 16 at all times. It cuts out around 3500 in third if you have it at WOT but if you ease into it and only go about 85% it pulls strong. Logs and tune are on different pc will post later just curious if this could be the problem. Thanks
Sounds purely tune related, unless you have a boost leak somewhere. Air/fuel swinging during cruise is completely normal for closed loop operation.
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Here is a couple logs on my way home. The fuel trims went from rich to way lean. Any input is appreciated. They are both of the same tune each about 15 miles of highway driving.
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