hi i got a problem with my b16a1 its in a 90 civic dx hb. it starts up but the rpm jumps around and if i try to go it dies down and stalls and then i cant start it back up for along time. but when it gets very hot it runs ok but rpm jumps around at 5000 rpm but thats if i can get it to worm up . like today i try to get to go and i can it started and i want a bit down the street and it hit like 2 times and die out and wont start right now. im goin to try to start it in the morning and see if it starts up... dont know what to do any ideas???