A quick search found a forum post from someone with a 2012 Wrangler that got confirmation from a service department that it is NOT compatible with E85.

As far as I know, all the FI kits for the 2012+ Wrangler are now using the Diablosport InTune for installing the tune, and only one tune is provided. The InTune can hold multiple tunes on it, but it takes about 10-15 minutes to go through the process of installing a different tune. No "quick" switching between tunes. Prodigy's tune requires minimum 91 octane.



Quote Originally Posted by AGOM View Post
I have been running the tune for 3days now and like you all the improvments are verry noticable, the engine is running much smoother and the acceleration and power delivery comes in steady
It seems that everyone is in agreement that the new tune is a huge improvement. Now the question becomes: has anyone experienced any issues with the new tune (besides Bkeef's strange error code)?


I'm still running into a jerk/lurch in acceleration sometimes while accelerating through about 2500-2700 rpms. This is with part-throttle, somewhat quick acceleration in 1st gear and sometimes noticeable in 2nd gear. A typical situation where I experience this is turning onto a major road from a complete stop, not stomping on the throttle racing, but just smoothly pressing on the pedal to get up to speed reasonably quickly. Right as I pass through about 2500-2700 rpm, the Jeep will behave as if I quickly lifted off the throttle slightly, then jabbed at the throttle to briefly accelerate more quickly than I previously was. It shakes the Jeep enough for a passenger to notice it and think that I was being sloppy/jerky with my throttle control, or even think that I had just completed a rough shift (manual transmission).

I'm not sure if this would even show up as an issue with automatic transmissions, because it seems to require accelerating through that RPM range within a certain range of engine load, and I'm not sure whether the auto trans will allow it.

Anyway, that is the only complaint I have about this new tune as of now. Everything else about it has been awesome. I would like to try to determine whether what I am experiencing is is unique to me and my jeep (less likely to be a problem with the tune), or is anyone else still experiencing a similar problem (very likely to be a problem with the tune).


Quote Originally Posted by AGOM View Post
Has anyone considered a wastgate controlloer? Wouldnt they help stablize the compressor even more and stop the possibility of surging?
There should not be any concern about compressor surge. Compressor surge would be caused by an improperly sized turbo for the application. If there was compressor surge with this turbo, we would all be experiencing it.

If an install error, exhaust leak, etc., were somehow the cause of compressor surge, a boost controller would not help avoid this, because a boost controller only regulates boost pressure. Boost controllers only have the ability to get more boost than what the wastegate spring would naturally allow, which means it holds the wastegate closed and forces the turbo to work harder than usual (more likely to get into a surge condition).