I was driving home on friday night, and the engine developed a thumping sound, like a cylinder not getting fuel. It was a miss in the engine I"m sure. so, I stopped and left the car running. The engine was vibrating and making a thumping sound. I got out of the car and went around to the tailpipe. I took a few good sniffs from the exhaust. It didn't smell sweet, and it wasn't smelling like burning oil. In fact there was no smoke at all. It didn't even smell rich of gas from the exhaust. I restarted that car, and the sound almost went away.
I dont' have any kind of scanner, or the led blinker type of tool.
I was thinking that the spark plugs and the wires and short connectors should be replaced. Possibly the coils.... I don't know when the last time they were changed was.
Does anyone have any links to where I can get a code blinker, and where I can find the port to use the blinker from?? I don't know any of this... I can do many mechanical repairs, but the electrically involved ones can be tough for me.
Any good advice would be greatly appreciated...

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Too many people tip toe through life, never attempting or doing anything great, hoping to make it safely to death... Bob Proctor

'95 S320 LWB
'87 300SDL
'04 E500 wagon 4matic