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Hello I drive a 2017 Challenger RT about a month ago I bought a Tune from Jay Greene I uploaded it with the Trinity T2 first week car ran great really woke up the transmission. I kept the Diablo tuner plugged in at all times and the cord ripped due to it getting caught in the door my car got a bunch of trouble codes. I waited for the new one to come in and I reuploaded the tune, car got a trouble code of U0101 I cleared it didn’t come back, I felt the car feeling really sluggish so I reuploaded the tune and got the same code again. My question is , is it common for cars to feel sluggish for absolutely no reason that the tune needs to be reuploaded ? And is that U0101 code due to the tune or an actual problem with the car?
 
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