This does not give us much to work on. From the symptoms the most likely cause is a power disruption and it can be caused by :
1. A failing ignition switch. This could cause the ignition system to stop working and engine stalling. When restarted the switch would continue to work.
2. An intermittently failing PGM-FI main relay. This relay is known to intermittently fail and when it happens, it can cause a lot of different symptoms such as difficult starting, jerking, lack of power. It can stop the fuel pump from working and engine stalling. To check and rectify this, remove the relay and resolder all the joints and it should be as good if not better than new.
3. A failing distributor.
4. A failing fuel pump.
I would suggest checking if there are any trouble codes stored in the ECM. Here are the procedure for checking/rretrieving codes.
Bridge the SCS connector, turn ignition ON and if Check Engine Light stays lit, no code is stored. If it starts to blink, then you need to count the blinking to get the code. Note the length of the blinks, prolonged blinks = 10 while short blinks = 1.
Check for loose wire connectors at distributor and engine wire harness. Look out for contaminations such as corrosion, oxidation etc.
Saturday, June 13th, 2009 AT 1:02 PM