I had the same issue with my car on Sunday. I converted to E85 recently, and it started slower, but ran fine. I dropped the fuel pressure a little bit down to 43-44 and it was turning over and started making a clicking sound (almost like a dead battery, but it wasn't the battery) and wouldn't start. It took three attempts to start, then finally did with a very slow idle. Once I hit the pedal a little bit it climbed up to normal idle. It was pretty strange.