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  1. Engine And Performance Discussion
    After I got my 'hawk back from Barth, it started throwing O2 codes. He told me the sensors were likely bad so I replaced them. Replaced the sensors last week (with OEM) and Now it's throwing a new but different code, P0153. It was very cold this morning, probably around 20 F. I remote...
  2. Engine And Performance Discussion
    Running straight E85 on a s1025 engine package with "flex fuel" tune and wondering if anyone is using any fuel additives they recommend or if they are even needed? I have read/watched videos etc. about how running E85 long term can clog up fuel injectors (running I.D. x1300s) where some...
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