crystalline, You are 100% right on failing if you have certain sensors or codes shut off"Readiness codes" I can tell you on my tune I have no sesors or codes shut off, The only thing I had to do was rasie the limit of my MAP sensor for Boost. Most of the guys that have things shut off are running HFC's and TP's and have the 2nd O2 range shut off so not not to throw codes. Or some off the EVO guys years ago would run no EGR valves and have block off plates installed and that sensor shut down.
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14 Q50 AWD, ARK, ECUTEK (SEB), Takda, 
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