I've been reading this post from end to end. You guys know your stuff. I'm new here and have the exact same problem as Jeremey with my '87. I have only changed the air filter and fuel filter (canister not the clear one). I get 22mpg city and 25mgp hwy. I'll start with the ALDA this weekend and see if accelleration improves. I'm going to yank the EGR guts out from under the air filter and remove the air sensor also. I emailed the guy that makes the 603 EGR block off kit, but no response yet. Anyone else have them?

thanks

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-Jason

'87 300D Turbo 333,492 miles on a #14 head