Well, I check the alda line, it seems fine.  On this car is a little 
different than the 91.  It comes out of the intake, goes to a Y, one of 
the Y's go to the ALDA, the other Y goes to a pressure sensor by the 
battery.  Does not have the cutoff switch in between.  I pulled the 
codes and it had one for EGR actuator/transducer something or other, one 
for rack position sensor, and one for starter ring gear sensor.  Cleared 
the code for EGR, but no matter what I did I couldnt get the other 2 to 
clear, even after unhooking the battery for a while.  I also noticed 
while idling, if you run the engine ad various RPM, the flap deal on the 
turbo outlet never moved at all.  On any other 2.5 I have seen, it seems 
to move back and forth at various times if you rev it up and/or down 
while sitting there.  No code set for that but something doesnt seem 
right. I do know when my other one I had, if you had any sort of vacuum 
leak you had zero power.  I suspect there is a leak somewhere.

Anybody know how to test all those switchover valves, and vacuum 
transducers/actuators whatever they are over on the passenger side?

OK Don wrote:
> When mine were leaking, they left a mess on top of the IP, left a
> distinct Diesel odor as you walked by the car, and it required
> significantly more cranking to start in the AM. I didn't notice any
> change in power after replacing them on either the 603 or the 602
> engine.
> 

-- 
Kaleb C. Striplin/Claremore, OK
  94 E420, 92 300D, 92 250D Turbo, 92 300E 4Matic, (2x) 91 300D,
  90 420SEL, 89 560SEL, 89 260E, 87 300SDL, 87 300TD, 85 380SE 5.0 Euro,
  81 240D, 81 380SLC, 80 240D, 76 240D, 76 300D, 72 250C, 69 250
http://www.okiebenz.com

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