other than that piggy backs, including highly advanced ones like the emanage and emanage ultimate, are only used to tune open loop.I am newer than a newbie at EM so please excuse my questions or posts if they seem ridiculous. you could also change the o2 sensor input (the perfect power can do this) and that would effect closed loop operation. The only way to change the closed loop tune is to change the original programing (re-flash or chip) or get a standalone. If you are going to be running different injectors (which I and pretty much anyone turbo kitting the car would have to), you'd lose some of the driveability advantage the piggyback offers over a standalone or even an RRFR w/ knock sensor. other than that piggy backs, including highly advanced ones like the emanage and emanage ultimate, are only used to tune open loop.Well that's what I mean. The cool thing with the emanage is it will alow you to change injectors or AFM and it will recalibrate the signals during closed loop so the car runs like stock. any piggyback is tuned for open loop only. I was going to use the Ultimate for my turbokit but I found out the MAP-based RS guys were having ECU learn-around problems with their Ultimates.they could only tune for open loop, not closed loop (i.e.
![speed density greddy emanage blue speed density greddy emanage blue](https://cimg7.ibsrv.net/gimg/www.evolutionm.net-vbulletin/945x682/jeremy_55c1943f65c7c105ae98e6703cd64127b6585656.jpg)
Is your 95 OBD II? Keep us updated on how that works out.