Volvo Repair: Starting problems, flash flash flash, example 121

Question
1991 Volvo 240 in Canada.  The car starts and runs fine when cold.  When hot sometimes it will start and only run for a few seconds, then stall.  Try again, same thing happens.  If I then leave the car for a few minutes it starts right up and works fine.  The car has 372,000 KM and is well cared for.  New timing belt, water pump, and fuel filter.  Runs at highway speeds fine.Thank you.
Robert Brown

Answer
sorry for the late response the site was down and I could not send this reply yestarday.there are many things that can cause this.I would try checking for diagnostic trouble codes below is how to do so.




in the engine bay on the drivers side near the strut tower there is a small black box with a wire attached to it.place the wire in the terminal marked 2.turn ignition key on (not started)press the small button for 1 second and the code will be displayed as a series of flashes.a red led displays the codes.the code will be three digits.small pause in between flashes for a single number long pause between flashes for the next number.example 121 will be flash.....flash..flash.....flash.repeat three times or until first code repeats itself.to erase the code after all codes have been checked hold the button for a good 5 seconds then release the light should light steady,then press for another 5seconds.this will erase the codes.  email me the codes and i will tell you what they are..socket 2is the fuel system 6 is ignition.