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I've been spending most of the day reading various threads, articles, and blogs about this issue, and unfortunately, you can add me to the list... 2013 FR-S 27,700 miles in Minnesota. Bought the car brand new in 2013 and have regularly noticed idle issues and stalling at times when coming to a stop. I had the dealer reflash the ECU about a year ago, but that didn't seem to solve the issue. I had an Injen intake and determined that it was causing my car to run lean. I replaced it with a Perrin CAI and also added a Borla catback. The idle issue was still noticeable at times but not as pronounced. Two weeks ago I bought an ECUTek programming kit from Perrin along with a custom map they made for my car, in hopes this would eliminate my idle issues and increase my throttle response. It ran great for the last two weeks and today the CEL and slip light came on. The first time I've had the CEL light come on since I've owned the car. It was noticeably bogged down and would downshift hard and delayed. I took it home and reflashed the ECU with my Perrin map, and the lights went away and the car ran normal again. I did some datalogging with my ECUTek to send to Perrin, and the lights came on again. I used my ECUTek to diagnose and clear the code, and it was the P0018 Crankshaft Position - Camshaft Position Correlation Bank 2 Sensor A. It went back to running fine for about a mile and then the lights popped up and the engine went limp again. This all took place today. I'm going to call Perrin on Monday and give them my datalog and see if they think it's the map or if I have to take it to the dealer. I purchased the 7 year extended warranty, so I'm hoping it shouldn't be an issue if I have to go to the dealer... Any recent news, thoughts, or suggestions on this issue would be greatly appreciated!!
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