- I've had issues with it continuously throwing codes for EGR insufficient flow, even though I've replaced the EGR valve with a new one. There does seem to be black soot coming from the tailpipe, which may be a symptom of this problem.
- In Jan of this year, I replaced all 6 spark plugs and air filters as part of its routine maintenance. The O'Reilly's store recommended Bosch double iridium plugs, which is what I went with. No problems were noticed.
- Last weekend on the way from Virginia to Ohio, the Check Engine light started flashing and the car started running a little rough. When I got to my destination, I pulled the #5 spark plug and the side electrode (the bendable part) was missing! I went to the local O'Reilly's store and purchased a new Bosch double platinum and installed it. I had to drive the car back to Virginia, and unfortunately the #5 misfire came back again along with the rough running.
Back here at home, I've done some things:
- I've pulled the spark plug, and looked at it's condition (the new one). Attached is a pic of it.
- I've checked for ignition by hooking up an inline clear spark light, and it lit up like a x-mas tree. So it seems to be getting good spark.
- I've done a compression test, and the 3 readings of 120, 95 and 118 seem to be a little low, but still not bad.
Thoughts? Fuel or spark plug issue?