turbo vac can gets constant vac, stays open 1993 300D

[Drago]

the circled can when reconnected gets a constant vacuum causing the engine to quit, the vac line goes into some sort of wired controller. whats going on? do I need to replace that little black controller?

[Drago]

http://www.peachparts.com/shopforum/attachments/diesel-discussion/68644d1244519244-1993-300d-2-5-1996-e300-diesel-screenhunter_02-jun.-08-23.46.jpg

would replacing the two small square devices make a difference? what are they called?

[Drago]

will be posting more detailed pics

[Drago]

I figured out the lower one is the EGR controller, what is the upper?

[Drago]

Is this labeled correctly?

[Drago]

HELP ME!!! any reason why my wastegate is getting a constant vac?

[shertex]

While I cannot answer your question, I will say that the way to cut through the Gordian Knot of vacuum and boost gremlins in your car is to convert to a pressure actuated wastegate. $90 of your money, a few hours of your time, and you completely eliminate EVERYTHING vacuum related on the passenger side of the engine. If you still have problems, at least you've eliminated a bunch of possible causes.

In fact, yours sounds like a textbook case where this mod is genuinely need....most people do it just to get rid of EGR and as a preventative measure. But it sounds like you have the problems the rest of us fear.

[Drago]

Originally Posted by shertex

While I cannot answer your question, I will say that the way to cut through the Gordian Knot of vacuum and boost gremlins on your car is to convert to a pressure actuated wastegate. $90 of your money, a few hours of your time, and you completely eliminate EVERYTHING vacuum related on the passenger side of the engine.

I'm game, got a a link for it? I'm going nuts here. it was bad enough I got ripped off and criminally defrauded on this beast

[shertex]

Originally Posted by Drago

I'm game, got a a link for it? I'm going nuts here. it was bad enough I got ripped off and criminally defrauded on this beast

Wastegate actuator swap for OM602.962?

Wastegate actuator swap for OM602.962 - revisited

All the information is there...but it's a lot to read through and, in the nature of the case, is not well organized. I had to read many times before it "clicked"....but you may be more mechanically intuitive than I. Once you get it, it's really very simple.

[shertex]

Originally Posted by Drago

HELP ME!!! any reason why my wastegate is getting a constant vac?

If I'm understanding your question correctly....the wastegate SHOULD get constant vacuum until the computer kills it thereby opening the wastegate.

[Drago]

correction the intake flap actuator labeled 99 and 100 on the above picture is getting a constant vac and goes hard over killing the engine.

[JamesDean]

I think that has to do with mixing the air from the EGR into the intake.

I replaced my vacuum wastegate actuator with a standard pressure based one with manual boost controller and just disconnected that flap actuator thing.

[Drago]

so the two cans on top don't mean nothing 'cept soot in your intake?

[JamesDean]

Originally Posted by Drago

so the two cans on top don't mean nothing 'cept soot in your intake?

Yep, that's my understanding of it. I have both disabled and have replaced the wastegate actuator with a standard pressure model.

Here are some pics of my endeavors:

OM602 Wastegate Actuator Swap - Imgur

[Drago]

GOT IT!!! cracked vacuum line to the wastegate, buried under all the extraneous bull****e. turbo spun right up and lot less nasty stuff out the tailpipe WOOOHOOO