During the process of troubleshooting an idle hiccup this year, I swapped out a spare MAF that turned out to be bad. It would cough on initial acceleration, but I didn't have it on the car long enough to do a full throttle test.

When I checked the codes using the J. Forgione "home brew" blink reader, I was getting a code that indicated the voltage at the hot wire MAF sensor was either too low or too high.

Also, those vacuum hoses leading to my EGR switching behind the right headlight are not rubber--they were about 3/16" diameter plastic and were totally fossilized.

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1993 400E, 256,000 miles (totaled)
1994 E420, 200,000+ miles
1995 E420, 201,000 miles