Check and /or replace pgm-f/i (programmable fuel injection) relay. It should be located under the dash to the left of your steering column. One way to test it is to place your hand on it, then turn the ignition key to the run position, you should feel it or hear it click if it does not replace the unit. The pgm-f/i relay is the connection to your fuel pump. In the key on engine off position your fuel pump should turn on for 2-3 seconds which pressurizes the fuel injectors. in the start position it feeds more fuel and after ignition it supplies a continuous fuel delivery to the engine. Over time the solder connections on the printed circuit board inside the relay loosen and crack (from continually heating and cooling, expansions and contraction) which will cause it to not make a complete circuit when the board gets hot. Or if your are careful you can open the relay and look closely for the cold solder connections and re-apply solder. This is a common problem with acura integras in that the car starts when it is cold but will not when the vehicle is warmed up.
gorm4660, November 2007
