Hey guys I want to get my car ready for emissions with a single turbo kit. Right now I'm running a ptf tune with stock boost solenoids. I have an o2 sim and have readiness on everything except the evap system and catalyst. What would cause a evap code? I can pass with one monitor not ready but not 2. I've read, that i should switch to a stock tune on the Cobb. Will my car run without a single turbo tune?
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