not sure if anyone has run into this issue. but I had a recent track day and had a sputter and car pretty much lost all power and felt like a slower than stock motor. checked the data and afr and knock looked fine. long story short after messing around I just decided to clean the MAF while I had it off trying to find something obvious. after I cleaned it the car came back to life. the only thing I could think of is the air filter had too much oil on it out of the box and over time got onto the maf because right after cleaning it the car like it should have.
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