Hey guys, just wanted to let you know that I'm still working on this. I've checked as many of the possible intake manifold leak culprits as I can think of, haven't found a smoking gun. Performed the fuel pressure test as described on Alldata, all within spec.

It's hard to test power, since I just got the car. It does seem a bit sluggish lately, but I blame ethanol. The shifting has always been a bit harder than I was used to on my old merc and at times it doesn't downshift like I feel it should. The mileage is lower than I would like, about 15-16 mpg. I'm not a lead foot, but my driving is 90% around town.

Are there any other suggestions?

I suppose that replacing that chip is a relatively inexpensive thing to try, though I would like to get to the bottom of all this. How do I go about getting one?

Thanks guys, I really appreciate all the input.

Greg

__________________
Greg Stein
'94 E420
'86 420 SEL
'79 300 TD