Thanks Manny. That makes sense. I figure I better find the souce of the miss, but since I've already been through the ignition, I thought I'd first make sure that the mixture adjustment was correct and that it was not the cause of the miss.

Anyone know about wheter or not I should adjust the mixture with or without the "purge line" connected as suggested in the Landiss article?

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2000 c280 Sport (looks like an upgrade, feels like a downgrade)
1991 190e 2.3 (sold)