I have now narrowed it down to the fuel delivery system (somehow) and the scanner not working when fuel pump can not be heard to run with ignition on.
Here's the symptoms and the scenario;
Last night I went to the store around 9PM, inside less than 5 minutes, and when I came out to start the car, no luck. Outside temperture was around 70.
- With ignition on could not hear fuel pump run.
- Hooked up scanner/code reader with ignition on.
- Scanner would not cycle through tests. The square indicator icon did not come on to indicate receiving any codes.
- Replaced battery in scanner and results were the same.
- This morning I turned on the ignition and heard the fuel pump run and of course the engine started.
- Hooked up the scanner and it cycled through all the tests and came back with 111 "system pass"
It seems to be getting worse, which is good I guess, it happened 3 times in one week, whereas before these instances were months apart. I did cancel my Mexico trip as that would not be the last place I would choose to get stranded, even with a beach near by :-)
Before I start with the shotgun approach of parts replacement and especially the fuel pump/strainer/etc, I would welcome any suggestions of where to start. Since the problem seems to occur after I've driven somewhere and the engine is warm, and not after having sat all night or at least for many hours, say 6 or more hours.
By the way, I have replaced the fuel pump relay.
Thanks
Jim