Long story short (maybe not so short). #3 cylinder had an oil fouled plug, but good compression so I replaced the valve stem seals without pulling the head. Car still ran rough, but ran so I didn't do anything else (because I didn't want to work on car after replacing the seals). Ran it for about 6 mos then decided to take a look at it. Pulled the #3 wire and no change, pull any other wire and car wanted to die. OK #3 is still trouble.

Checked plugs are clean, in fact the plug in #3 looked like it hardly ever fired. Verified spark, rechecked compression and it was good. That leaves no fuel and/or O2. Checked #3 fuel injector resistance, it read 52 as opposed to 10-14 ohms. So I replaced it today.

That's when the white smoke started. It has a strong fuel smell. Tried backing out and car stalled when I shifted out of R into N, hard to restart but it restarted. One other tidbit it that the check light came on a few days ago (and went off later that day and never came back on)before I changed the injector. I checked the code and it's EGR Valve Sensor.

Could a malfunctioning EGR somehow be the culprit, or is it likely something else.
bhlass@verizon.net