my 99 cavalier (auto,2.2l)has something really strange on starting: easiest on cold weather, or good when engine is hot, but very hard to boot when engine just warm, especially when I try to boot it after 1hour's shopping, it won't boot when first try, although i turn on fuel pump early or give some gas, it just cranking, seems no gas, unless second try, it boot up successfully. someone says it's the problem of gas pressure regulator, where it located? how to replace it? anyone has any suggestion?thx

You work with computers a lot don't you the gas pressure rag is at the end of the injector rail it looks like a little cylinder with a vacuum line on it.


My car--->http://www.cardomain.com/ride/2569452