Chevrolet Repair: 93 Jimmy 4.3 v6, pressure and volume, fuel pressure

Question
I have a 4.3 cpi v6. When engine is cold it will start and idle.If you advance throtle it may/maynot continue running.Once engine has run for a few minutes it will die and not restart. The fuel pump presure has been checked ok.The check engine lite does not come on and there are no codes stored.Any sugestions?

Answer
You need to determine IF you are getting sufficient ignition to the spark plugs when the engine will NOT start. PROVIDED you are SURE that you are getting sufficient fuel pressure and volume also.

Once you determine if your fault is FUEL or IGNITION then we can do some diagnostics.

autohelp