So here is what I'm considering right now:

OBD II must remain functional to meet state inspection requirements. There is currently no exhaust opacity test. Just OBD codes and command the CEL on and off.

1. The simplest solution like you say is to put Myna 7mm elements into my existing pump. However, I've been told by some of the European experts that this won't work for one reason or another which was lost in the language translation. Again, as you say, it may prove too twichy for the computer to manage. It's also possible that this may be corrected with a custom chip. There's also the very promising information about delivery valve modifications that may be able to be applied to this pump and I'm watching those discussions very closely.

2. If this is truly the case, I'm looking at gutting an appropriate mechanical pump and attaching the servo mechanism from a drive by wire unit with a custom adapter plate similar to one used to adapt a transmission to a different engine.

3. If this is absolutely impossible, I'll research using a throttle servo from a gas Mercedes or Corvette or whatever I can make talk to the computer to actuate a mechanical pump.

If I truly can't use my 606 pump, it seems that the leading candidates for a replacement are the pumps either from a 603 or the 606.910. I've been told as well by someone in Finland or other European country that the mech 606 pump is superior because of the cam.

So that's where I'm at right now. Induction/exhaust will come after I come up with a suitable fuel supply.

__________________
-Evan


Benz Fleet:
1968 UNIMOG 404.114
1998 E300
2008 E63


Non-Benz Fleet:
1992 Aerostar
1993 MR2
2000 F250

Thats the problem, a custom chip. The computer can't be flashed like the TDIs so you have to program a chip and physically swap it inside the computer. Not a cheap option.