stalls

hey guys, i just finished installing a timing belt, started it up and it idles just under 1k. (800 rpm) I went to the store, caught a traffic light, and the rpms almost returned to the peg. I got to the parking lot, parked it and revved up to 1500. Let off the gas and the RPMS went back down...

my 99 stalls ( and is getting more offten ) when its hot weather. Living here in so-cal it's that time of year. Only stalls after she's drivin and then sits for awhile. Then driving again she'll stall ( and you never know where or how far between, and has a hard time restarting. Had to push her...

OK, here's my problem. Every once in awhile driving my V shuts off and right away it will start. When it does, the cluster lights shut off as well, as soon as i throw it in nuetral (cluster lights come on)and it starts right up. Took it to honda dealer and they couldn't figure it out since it...