1997 Pontiac Grand Prix service engine light car won't star

Hello, if your saying it cranks good,but, won't start? Do some of the basic tests, have a helper crank it, while you check for spark at the plugs and injector pulse. Try to to see what your missing, when it refuses to start.

[quote:c4e304f453="jdl123"]Hello, if your saying it cranks good,but, won't start? Do some of the basic tests, have a helper crank it, while you check for spark at the plugs and injector pulse. Try to to see what your missing, when it refuses to start.[/quote:c4e304f453]

Hello again but wouldn,t a spark problem or fuel problem have shown when diagnostic test was performed.It sometimes runs fine for weeks w/o hesitation and then all of a sudden I shut it off and then it wont start again for like ten or fifteen minutes

If your asking, would a no spark or no fuel set a code? Not always, when all else fails, do the basic tests. You have to do the testing, when the problem is ongoing.

When it refuses to restart, you need to try to see if your missing fuel or spark. Putting a scanner on it that shows live engine data, freeze frame, codes, yeah that would be nice. Code readers are ok, better than nothing.