I have a 2000 VX. Recently engine started to act up more. I would start it up and it would startup and die immediately. Once as I was driving on the highway, the engine just turn off and I had to coast to the side of the road and start it up again. It was happening very infrequent so every time I talked to a mechanic or Isuzu rep, they told me they can't figure it out unless it happens all the time. I'm glad they were all honest and didn't take my money, but it's been happening more often now (though still not every time). Doesn't matter if it's hot, cold, rainy, nice weather, driven daily, sitting for a week. Sometimes I have to keep my foot on the gas ever so slightly to keep the RPM's up so I can drive so that it doesn't stall at a stop light. Most of the time it's ok after driving for a while. Every once in a while it doesn't get back to normal until I park the car, take the key out pump the gas once or twice, and start up again. Then it's fine. Sometimes when I start up, the RPM's will be high above 2300 RPM's and stay high which is opposite of starting up and dieing immediately. I even called into a couple radio car shows and they couldn't figure it out. It started about 3 yrs ago. Only happened once that year so thought it was a fluke. Then it happened again 2 times in one day about a year later. Then nothing for another few months. Then maybe once every 2 months. In the last 3 months, it's happened about 5 times.