The motor starts n/p when hot..the problem was last night at leisure...seems its always harder for me too tune there since u cant hear the car.. but i tryed various setting and i do tune my car daily with good results up until last night..actually it started happening at leisure wens then i got the car running preety good in my yard thurs afternoon and was dying alot thursday night...I will have to try from scratch in my yard but im suspicious that it loosing compression when hot.