I haven't posted on here for awhile, my car is a 1999 Civic EX
D16Y8 built up, 15G turbo, hondata. For the last couple of weeks, the car would stumble if I left it for a few hours in the sun and then started it and go down the road, but would eventually stop after a minute. It would also "buck" in gear at low speeds. I thought it might be the fuel filter so I changed it, seemed to help but it was still having the same problem but not quite as bad. I decided to get Exxon gas instead of Shell, thinking I had a batch of bad gas. That made it even worse, then finally it bucked and killed on me. I got it started again and it still bucked a little. Once I got it to the gym about two blocks away, It stalled out again and I could get it started. It would turn over, and would "want" to start about every third try or so. The plugs were changed about 500 miles ago, the air filter just changed. I'm gonna look at the plugs when I get it towed back to my house. I am thinking plugged injectors or a fuel pump going out? I had a similar problem with it a couple months ago but it seemed to solve itself. Any idea? Thanks

 

I got the car towed back to my house and tried to crank it again just to see. It started but it wanted to stall if I didn't give it some throttle. It sounded like a harley, erratic. Then
I kept it at about 2,000 rpms and it smoothed out after about 30seconds. There has also been alot of what sounds like valve train noise for awhile. The guy that towed the truck said that maybe the timing belt has slipped? I had it changed a year ago

 

Check your ignition coil, cap and rotor and see if they are ok. Next look at you crank sensor.