[csx4910]

First off happy father's day to all! May your fathers day be filled with Bad ties, gifts you have no idea what they are etc. Father's day brought me a Smith and Wesson Model 629 44 magnum with a 6 inch barrel for father's day! ( My wife knew I had been wanting one for a while)

On a bad note, it also brought me more problems with my cobra after hesitation under acceleration, I put it down to it being a relatively cool morning and only having half a tank(my fuel injections does odd things and gets cranky if I am under a half a tank) so I went to fill up with 100 octane to mix 50/50 with the 91 crap we have here in Phoenix.

Well the hesitation went away and it was running fantasic until I got off the freeway and pulled up to the light. I noticed it was idling at about 1200 instead of the 900 -1000 rpm, then dropped down to 900 and died. It took 20 tries to get it to fire again and ran good until the next stoplight and did the same thing, this time taking 30 tries it get it started.

Any ideas on the funky idle and then dying after it had been running so much better with fresh juice in the tank?