Last night I pulled the plug wires from the spark plugs only, not from the coils.

When I pulled out them out, the #3 cylinder had some water in the spark plug hole and the spark plug boot was wet. I blew compressed air in each of the plug holes to blow out any moisture, did the same to the plug wire ends that meet with the spark plugs. The after took some sand paper and twisted it in each of the wire ends to make sure there is a good conenction and to clean up any possible corrosion. I also put a small piece of a 3M scuff pad on the inside of the spark plug socket to clean to contact onthe plug itself. I did not dig in any deeper as I was sure that this was my problem. In the meantime I had to battery disconnected to reset the computer. Put it all back together, started her up and the same thing, nothing had changed...

I also pulled a few plugs of various sensors that are visible on the top of the engine and surraounding areas and cleaned off the contacts with the scuff pad to no avail.

I did not pull the plugs as the spark plug socket I have does not have the rubber boot inside the socket to hold the plug in the socket, it's fairly deep in the spark plug socket and I did not want to just drop the plug in there...

Any other ideas guys? The CEL has never appeared while in my presence and I have been driving the car since.

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'97 E300
'99 E300