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Engine Specific Info and Questions => TDI Engine -General Info => Topic started by: Smokey Eddy on September 22, 2012, 05:00:55 pm
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Does anyone know of a EGR delete DIY? If not I think I'll make one.
Maybe on TDI club?
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Id parts I think does. The mechanical part is simple, but from what I gather you will get a code if you don't have it deleted in the ECU. Not 100% on this.
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i made up my block off plates.. hacksaw, drill and barstock..
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It is idparts...it wouldn't take much to block one off, but the idparts deal has the egr cooler hose delete. I don't know what all it is, but that can probably be sourced from a parts store fairly easy too.
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i made up my block off plates.. hacksaw, drill and barstock..
almost the same here, bandsaw and use my mill as a drill with 1/4" thick bar.
I used the stock hose slightly chopped and another hose I had off a TDI chopped and joined them. I can't remember exactly where this other hose came from though.
Here is a kit
http://www.dieselgeek.com/TDI_EGR_Cooler_Delete_p/egr-cooldel.htm
See that straight coupler? you can get those from a junk yard, they are on every gas jetta/golf/beetle heatercore, just grab that and a few random hose chunks and you can cobble something together. I used 7/8" aluminum tube I had as a coupler - the tubes are 20mm so its a nice stretch fit.
You also need a straight 3/8" hose barb to connect the bleed hoses back to the coolant reservoir - I think 5/16 might be the right size but 3/8 also works as that's what I just used.
You won't find much on tdiclub, they're a bunch of sissies :P
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You won't find much on tdiclub, they're a bunch of sissies :P
Alright! Thanks for the info guys! :)
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Id parts I think does. The mechanical part is simple, but from what I gather you will get a code if you don't have it deleted in the ECU. Not 100% on this.
You're right on this. You will need VAG-COM or something like it and somebody who knows how to change the coding so that the ECM no longer reads the EGR's value block, which is what prevents the check engine light from coming on. You can even use VAG-COM to fiddle with the injection timing, quantity, and even boost control. It's one of those tools that I wish I had, and is pretty indispensable to tuning e-TDI's.
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If you want have your tuner delete the EGR valve duty cycle/ EGR valve monitoring from the software, mine did. I use TDtuning now. I had a Rocketchip before and that eliminated the EGR as well but not as well as my new tune....I still had to leave the N18 valve connected to keep my MIL off...then in an effort to clean up my bay and make more room I got a 20 ohm 10 watt ceramic coated resistor to fool the ECU into thinking the valve was still plugged in! I don't need that resistor now but already sold it to another TDI club member.
If you have an e-TDI and you don't have VCDS, you are in the dark.
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I have also read about a "MAF twist" on TDI club. Supposedly rotating the MAF in relation to the airbox will prevent codes from being thrown with an EGR delete.
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MAF twist might fool the ECU to thinking you're not getting as much air, the ecu will in turn fool you and not give you as much fuel ;)
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Flip! I knew it wasn't THAT simple. arg. I need a whiteboard.
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Flip! I knew it wasn't THAT simple. arg. I need a whiteboard.
What isn't simple about blockin the EGR passages and leaving the stupid N18 valve plugged in? Nothing to lose there...
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Oooo I think ill have to actually look and know what that valve is.
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I now have my EGR deleted in the ECU. Until I feel the need to replace the mechanical parts of it I will leave it as is.
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Why or when would you want the egr to be working?
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warmup.
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warmup.
Ah I see how that could be beneficial. I'm still pretty firm on the idea that an EGR is not a good idea. Unless there was some way of stopping all the soot from clogging everything. Exhaust is so dirty (sooty/gets on everything/makes everything filthy) im surprised anyone thought to run it back through the engine.
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I don't ever. I just don't have the time to mess with the mech side of it now.
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The soot isn't really the problem, it's that when it shares space with oily crank vapor, it makes high build asphalt coating. With a good oil vapor separator, it would probably be trouble free for many years.
When you think about it, your nozzles, pistons, exhaust valves , and turbo are exposed to soot all the time, some cakes on, then it burns off no big deal. When you tear down a good motor, there is still a 2 micron coat of soot on everything.
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The soot isn't really the problem, it's that when it shares space with oily crank vapor, it makes high build asphalt coating. With a good oil vapor separator, it would probably be trouble free for many years.
When you think about it, your nozzles, pistons, exhaust valves , and turbo are exposed to soot all the time, some cakes on, then it burns off no big deal. When you tear down a good motor, there is still a 2 micron coat of soot on everything.
I hear that. But that's usually just blow-by and the oily cylinder walls collecting some soot. its not like a pipe that directly blows it into the intake runners (which like you say isn't dry air - its oil vapor).
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If you want have your tuner delete the EGR valve duty cycle/ EGR valve monitoring from the software, mine did. I use TDtuning now. I had a Rocketchip before and that eliminated the EGR as well but not as well as my new tune....I still had to leave the N18 valve connected to keep my MIL off...then in an effort to clean up my bay and make more room I got a 20 ohm 10 watt ceramic coated resistor to fool the ECU into thinking the valve was still plugged in! I don't need that resistor now but already sold it to another TDI club member.
If you have an e-TDI and you don't have VCDS, you are in the dark.
Did you get your VCDS from ross-tech? Can you change the new "feature" of the 2012 TDI to cut the engine injections when it thinks you're going to lug or stall the engine off the starting line? This really annoys me on my new TDI...
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That seems like a stupid feature, also.. good to see you back ARB. Been a while. :)
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Don't want to transform this from EGR delete to CR TDI discussion but ;)
The only way I know of to do that is via tune, which I know Malone is doing it, not sure about the rest.
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Yeah I'm hoping to go see Mark very soon. Turns out he lives down the road from me...
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all i do is slip a bit of tin between the egr and the inlet man and that is it , the egr can still open but no exhaust gases can pass in to the inlet man
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The soot isn't really the problem, it's that when it shares space with oily crank vapor, it makes high build asphalt coating. With a good oil vapor separator, it would probably be trouble free for many years.
When you think about it, your nozzles, pistons, exhaust valves , and turbo are exposed to soot all the time, some cakes on, then it burns off no big deal. When you tear down a good motor, there is still a 2 micron coat of soot on everything.
I hear that. But that's usually just blow-by and the oily cylinder walls collecting some soot. its not like a pipe that directly blows it into the intake runners (which like you say isn't dry air - its oil vapor).
I haven't noticed much on the cyl walls.
This is before rinsing with kerosene.
(http://i18.photobucket.com/albums/b126/SVOlvo/DVC00973.jpg)
(http://i18.photobucket.com/albums/b126/SVOlvo/DVC00960.jpg)
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With the colder mornings here (about 12-14C) I think the egr is running more often now and the car is rapidly getting poorer mileage. Only seeing about 850km to 55 litres now and that's about 80% highway driving to work.
I think what im going to do is make a car cover (so i can work in the rain) and set up a little table - i no longer have a garage - and just take it all apart and clean it all.