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Discussion Starter #1
1994 E320 Wagon.
I know there are a million rough idle posts out there, but this one has me baffled.

Idles rough.

Runs rough on acceleration

Runs very bad at dead idle with foot off accelerator.

Runs clock smooth at say 5-10% accelerator.

Runs VERY BAD at 11-50%,

and runs great at 50%-100% accelerator.

See no sparks from the plug wires, plugs look ok...
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