Just recently acquired my JB4 and have been running Map 1 until today that I had a day off and was able to change maps. I went into Map 2 and as soon as my car sat turned off for more than 30 minutes it would struggle to start and would not turn over.
I would have to press the start button 3 times to finally get my car going.
After, I went over to map 4 and pumped 4 gal of E85 and the rest of 91. Performance is AWESOME. I just have the issue of the car not wanting to start.