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mdisav 10-22-2006 09:45 PM

got it this time - egr bypass 606 turbo
Anyone interested??? I have been shown how to reconnect with the mothership.

I have probably 1,000 miles since the mod without any codes or performance decrease.

It takes a vacuum actuated electric switch, diode and one wire spice.

tolive31 10-22-2006 10:14 PM

Joined the Epsilonian Confederation, did you?

aklim 10-22-2006 10:15 PM

I'm intrested. However, the thing I question tho is what is the gain? I see a lot of crud in the manifold and think that it is a combination of the oil vapors and the EGR. So elimiinating the EGR is one part of the equation. The other might be to eliminate the vapors. Any way to do both?

tolive31 10-22-2006 10:18 PM

The crud is formed by the combination of soot and oil vapors from the ccv system. You only need to eliminate one of the two to prevent the crud from forming.

raMBow 10-22-2006 10:21 PM

It's not nice to tease
I'm interested. Will have the intake off here in a few weeks changing the fuel lines, so I may have an official position as to my interest in actually doing the modification.

ForcedInduction 10-22-2006 10:51 PM

Don't just ASK if we want to know it. Of course we want to know. Just post it.

aklim 10-22-2006 11:00 PM


Originally Posted by ForcedInduction (Post 1310429)
Don't just ASK if we want to know it. Of course we want to know. Just post it.

Like that avatar. Ku Klux Klan turbo huh? :D

ForcedInduction 10-22-2006 11:07 PM


Originally Posted by aklim (Post 1310439)
Like that avatar. Ku Klux Klan turbo huh? :D

Come on, you know it's Kühnle, Kopp & Kausch.

EDIT: Happy? there is an "&" in there now. :rolleyes:

aklim 10-23-2006 01:02 AM


Originally Posted by ForcedInduction (Post 1310454)
Come on, you know it's Kühnle, Kopp & Kausch.

EDIT: Happy? there is an "&" in there now. :rolleyes:

Just yanking your chain

Hatterasguy 10-23-2006 01:19 AM

Post it! I have been trying to figure out how to kill the egr on a 606 for awhile!

mdisav 10-23-2006 06:37 PM

ok, ok...
There has been just so much energy put into this one, I just had to post it that way. I did not mean to bring so much pain.

Yes, I did join the federation after much searching on the tdi forums.

Step 1 : Buy this device - Airtrol F4200-X30
Step 2 : Buy this diode from radio shack. I can not find the number. I will have to add it later.
Step 3 : Set the device to switch at about 19 or 20mm Hg
Step 4 : Snip the last number wire on the maf. It is number 5 or 6 depending on the maf used. Mine was yellow. I snipped it next to the computer under the plastic cover. Just make sure you have the proper one. Also the device fits neatly in there and it is quite obscure.
Step 5 : Hook top (com) terminal to wire to maf, hook middle (NC) terminal to diode, hook bottom (NO) terminal to other end of diode which also has the wire to the computer hooked to it. Just make sure the diode flow is going from NC terminal to NO terminal. All connections must be really good or soldered.
Step 6 : Hook vacuum hose that goes from solenoid to egr to the device instead.

When the computer sends vacuum via the solenoid to open the egr it will switch the device instead. The diode will create the necessary voltage drop that the computer is suppose to see from the maf. When not activated the circuit functions as normal.

Report back with success and/or questions. Good luck!!

mdisav 10-25-2006 08:09 PM

I stopped by radio shack today to get the diode part number but they did not have the selection like the other store. I will get it posted within the next few days.

BenzDieselTuner 10-25-2006 08:16 PM

good luck! ;)

OldPokey 10-25-2006 11:26 PM

Radioshacks around here are all dropping their electronic components in favor of cheap toys and other electronic junk. You can buy stuff from Jameco (, Digikey ( or Mouser (

I don't know what their minimum orders are these days, but their component quality is much better than Radioshack.

mdisav 11-07-2006 10:50 AM

The diode is IN4004 purchaseable at radio shack. Please report back with results. Failed or success. Sometimes it takes a little tweaking here and there but once you get it you are golden.

No CEL and I have logged over 2,000 miles.

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