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?

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1993 MB 300D 245K died.

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?

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1993 MB 300D 245K died.

will be posting more detailed pics

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1993 MB 300D 245K died.

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

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1993 MB 300D 245K died.

Is this labeled correctly?

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1993 MB 300D 245K died.

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

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1993 MB 300D 245K died.

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.

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14 E250 Bluetec 4Matic "Sinclair", Palladium Silver on Black, 159k miles
06 E320 CDI "Rutherford", Black on Tan, 179k mi, Stage 1 tune, tuned TCU
91 300D "Otis", Smoke Silver on Tan, 145k mi, wastegate conversion, ALDA delete

19 Honda CR-V EX 77k mi
Fourteen other MB's owned and sold
1961 Very Tolerant Wife

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

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1993 MB 300D 245K died.

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.

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14 E250 Bluetec 4Matic "Sinclair", Palladium Silver on Black, 159k miles
06 E320 CDI "Rutherford", Black on Tan, 179k mi, Stage 1 tune, tuned TCU
91 300D "Otis", Smoke Silver on Tan, 145k mi, wastegate conversion, ALDA delete

19 Honda CR-V EX 77k mi
Fourteen other MB's owned and sold
1961 Very Tolerant Wife

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

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14 E250 Bluetec 4Matic "Sinclair", Palladium Silver on Black, 159k miles
06 E320 CDI "Rutherford", Black on Tan, 179k mi, Stage 1 tune, tuned TCU
91 300D "Otis", Smoke Silver on Tan, 145k mi, wastegate conversion, ALDA delete

19 Honda CR-V EX 77k mi
Fourteen other MB's owned and sold
1961 Very Tolerant Wife

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.

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1993 MB 300D 245K died.

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.

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Cruise Control not working? Send me PM or email (jamesdean59@gmail.com). I might be able to help out.
Check here for compatibility, diagnostics, and availability!

(4/11/2020: Hi Everyone! I am still taking orders and replying to emails/PMs/etc, I appreciate your patience in these crazy times. Stay safe and healthy!)


82 300SD 145k
89 420SEL 210k
89 560SEL 118k
90 300SE 262k RIP 5/25/2010
90 560SEL 154k
91 300D 2.5 Turbo. 241k
93 190E 3.0 235k
93 300E 195k

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

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1993 MB 300D 245K died.

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

__________________
Cruise Control not working? Send me PM or email (jamesdean59@gmail.com). I might be able to help out.
Check here for compatibility, diagnostics, and availability!

(4/11/2020: Hi Everyone! I am still taking orders and replying to emails/PMs/etc, I appreciate your patience in these crazy times. Stay safe and healthy!)


82 300SD 145k
89 420SEL 210k
89 560SEL 118k
90 300SE 262k RIP 5/25/2010
90 560SEL 154k
91 300D 2.5 Turbo. 241k
93 190E 3.0 235k
93 300E 195k

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

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1993 MB 300D 245K died.