Torn DV

[A4Guy]

Hey guys I was just wondering how you can tell if u have a torn dv or not? I chipped my car with the apr 91 program about a couple months ago and i read somewhere that the stock dv will tear. How serious is this issue if my dv has been torn for a while now?



2007 A4 2.0T quattro Tip / APR 91 program / Forge BOV / Eurocode Testpipe / K&N Air Filter

[Sharkfin]

if its torn you will notice a definite drop in turbo acceleration, its an obvious change in how the car operates

[A4Guy]

when i shift gears, sometimes i hear a rattle where the dv is located.. does this mean its torn?

[acidrome]

the only true way of knowing is if you notice a loss of boost

[Sanjman]

if its torn you will notice a definite drop in turbo acceleration, its an obvious change in how the car operates

turbo acceleration... interesting term.

[redhott06]

less boost..slow car.

[Sanjman]

This is how this forum works usually. You search for the answer to your question first. Then, if you find it something related, reply on that thread if it doesn't answer your question. If you don't find it, THEN create a new thread.a

[Sharkfin]

^^i meant at the point when the turbo is supposed to kick in there will be a noticeable lag/drop

[Audi4turbo]

I recently replaced my stock DV with a Forge valve after the CEL fairy visited me with a boost leak. The car is MUCH better now, and feels like it holds boost longer. I found that with the torn valve you could hear the leak when I had my Carbonio CAI on, not that that makes a huge power difference. The Forge valve replacement wasn't the easiest thing to do, but the use of an air ratchet and allen head bits it was possible. I had tried doing it with standard allen keys, but it just didn't work out in the location. In any case a different valve is highly recommended with the chip.

[quattrosaint]

mine tore twice, then went with the forged dv. You should know pretty easily if its torn. Do about 40ish in third, hit the gas, if it pulls fairly hard its most likely not torn, if grandma goes past you in her walker, dude replace it.

[SLYCAT]

Don't want to thread jack but is the forge DV adjustable? Throwing a CEL. Dealer says it's holding boost too long needs adjusting.

[A4Guy]

yea imma test it when im not sick. [:(] I been sick for about a week and I havent driven my car for about a week. I will test that 3rd gear thing and if its broken ill prolly grab the Forge DV. O how is the Forge DV compared to others? is it the most common stock dv replacement?

[BlackSpeed2.0t]

yes the forge dv is adjustable.. should have a pro put this in if you havent done one before otherwise go for it =)

[quattrosaint]

forged dv is great b/c it acts like the stock one (a little bit louder) but can hold the boost. It may be my immagination but it seems the turbo spools faster when I punch it. It is a common replacement but I honestly can not tell you how it is compaired to others b/c its the only one that has been in my car besides the stock one. I did my reserch on this forum (thanks guys) and it looked to be the best. Cant go wrong with a Forged dv

[A4Guy]

thx guys. ill be ordering the Forge DV on monday :) [az]

[Sharkfin]

where are you ordering it from and for how much?>

[Sanjman]

what's the point? Get the latest version of the OEM dv for like 70 bucks if your car is not under warranty. if its under warranty get it fixed for FREE. This is a common issue. If you are really worried about getting your warranty voided... buy the OEM DV (get the latest version... it is known to not break). I don't think there is a SINGLE owner on this forum with the latest DV having problems with their DV tearing. It is the old ones that are messed up. Aftermarket DVs are known to spike.

If you want more info... search. thanks.

[quattrosaint]

what's the point? Get the latest version of the OEM dv for like 70 bucks if your car is not under warranty. if its under warranty get it fixed for FREE. This is a common issue. If you are really worried about getting your warranty voided... buy the OEM DV (get the latest version... it is known to not break). I don't think there is a SINGLE owner on this forum with the latest DV having problems with their DV tearing. It is the old ones that are messed up. Aftermarket DVs are known to spike.

If you want more info... search. thanks.

I may be the only "lucky" one. The last one a tore was the new (I think its called the G version) My dealership knows I am running a chip b/c they keep tearing and said its almost impossible to do it on stock boost. Last stock DV was replaced it November and by the end of December it felt like it was torn too.

[Pat@Forge]

ALL valves are "known" to spike. You are referring to "information" from a real mess of a thread on the VWVortex that was basically a bunch of mud-slinging directed at us. Unbiased and independent testing (that was repeatable, unlike the "tests" in that thread) shows the same spike in the OEM setup. From all the logs I've seen our set-up makes boost better, that is to say it is closer to the requested than the OEM valve ever gets.

Currently there are no other DV options for the 2.0Ts that retains ECU control other than ours.

SLYCAT,

Our DV cannot produce extra boost, it isn't possible. No DV on any car can make more boost than the boost control setup (wastegate, solenoids etc) is set to, it just isn't possible. That being said it is possible for a DV to LOSE boost and going from one setup to another might see an increase in boost levels but this is just from a leak being eliminated.

Are you running ALL of the vacuum lines as detailed in the instructions? I've heard of people opting to NOT install the vacuum tap part of the set-up. Doing this isn't recommended and can result in a soft-code.

[SLYCAT]

Hey Pat, I was hoping you would answer my question, thanks. I switched back to stock and no problem, when I go back to 93 chip I get a P0299 CEL code Turbo underboost........ scratching head. Checked hose connections, all good. Had pro-shop in NC do the install. What else can I check? Sorry I know it's not my thread, just wanted this fixed and the only change in the car other than chip is the DV.

[Sanjman]

ALL valves are "known" to spike. You are referring to "information" from a real mess of a thread on the VWVortex that was basically a bunch of mud-slinging directed at us. Unbiased and independent testing (that was repeatable, unlike the "tests" in that thread) shows the same spike in the OEM setup. From all the logs I've seen our set-up makes boost better, that is to say it is closer to the requested than the OEM valve ever gets.

Currently there are no other DV options for the 2.0Ts that retains ECU control other than ours.

SLYCAT,

Our DV cannot produce extra boost, it isn't possible. No DV on any car can make more boost than the boost control setup (wastegate, solenoids etc) is set to, it just isn't possible. That being said it is possible for a DV to LOSE boost and going from one setup to another might see an increase in boost levels but this is just from a leak being eliminated.

Are you running ALL of the vacuum lines as detailed in the instructions? I've heard of people opting to NOT install the vacuum tap part of the set-up. Doing this isn't recommended and can result in a soft-code.

thanks for clearing that up with me.

[Pat@Forge]

SLYCAT,

Are you getting an under or overboost code? In the first post you say over now you say under, or is it both?

When you say "back to stock" do you mean the program you are running? If so I'd be inclined to think there might be an issue with your flash...

The DV should be invisible to the ECU, that is to say if it has been installed correctly it should exaclty mimic the factory electronic DV and the ECU is unaware that there has been a change.

If the vacuum portion of the set-up isn't installed the DV WILL function but the opening and closing will be slightly off from what the ECU expects and eventually a soft-code might be thrown, a sensor intermittent failure if I remember correctly. No CEL and neither an over nor under boost code. If the DV has failed in some way you would lose boost but switching from one program to the next SHOULDN'T have any effect...

[SLYCAT]

Yeah Pat the dealer says overboosting but I got VAGed and it says underboost. Checked with the installer this morning and say said they installed the proper vacuum hoses so it just might be the chip. [=(]

[Pat@Forge]

Alright, keep me in the loop...

[Jersey Stephen]

I think I have a torn dv when i hit 5000rpm I here a whistle nose through 6800rpms I don't know if this helps but I was raceing my friend and after we were done my headr was red and my turbo was red

[Pat@Forge]

I think I have a torn dv when i hit 5000rpm I here a whistle nose through 6800rpms I don't know if this helps but I was raceing my friend and after we were done my headr was red and my turbo was red

Yes, that is a danger from having a boost leak, which is what a torn DV is essentially, your wastegate will still try to regulate boost pressure and as a result your turbo will spin EXTREMELY fast to compensate. This is bad for the turbo bearings and the high intake temps that result are bad for your pistons.

[Jersey Stephen]

I'm stock so Ill just go to audi how long do you think it will take

[arjzw]

how long can a chipped a4 run before the oem dv is torn? Like average. Because I want to try the chip for a month and I don't want it to rip within that time. Lol.

[SLYCAT]

If you do just have it changed on warranty.

[AudiWxGuy]

how long can a chipped a4 run before the oem dv is torn? Like average. Because I want to try the chip for a month and I don't want it to rip within that time. Lol.

I think it really depends on how hard you drive the car. I've heard of guys with the stock dv lasting 30,000 miles. Other peoples go after 5,000. However, the DV was changed in 2007 and I believe the 2006 and prior are not as good.

[Jersey Stephen]

do you guys know wat rong with my car

[Ivory 305]

i have a chipped 08 2.0T and im trying to tell if mine is torn or not. i drove my car really hard and when i got home i popped my hood just to look and i noticed that two large parts below were red is this bad? or does that happen all the time just after a hard drive?

[quattrosaint]

that would be the turbo and the manifold..... with the extra boost they will glow bright red under hard driving.

[Ivory 305]

is that normal or something i should worry about?

[quattrosaint]

is that normal or something i should worry about?

Its normal, It also is because our side mount intercoolers suck. I would recomend a FMIC. I would not worry about it but after spirited driving I would let it cool down a bit before you shut it off.

[TonyD]

We have a few left in stock if you need one.

[Ivory 305]

thanks quattrosaint i appreciate it and i will definetly look into it tony. i am going to buy a forge dv before too long i just wanted to make sure that the red glow wasnt abnormal. goodluck to everyone else with car troubles

[Kevin2772]

I must be SOL when it comes to the "new" DV's as my car is an 08 delivered in January from the factory and I have the 4000RPM+ whistle going on. Hopefully a forged DV will fix the problem....

[Pat@Forge]

I must be SOL when it comes to the "new" DV's as my car is an 08 delivered in January from the factory and I have the 4000RPM+ whistle going on. Hopefully a forged DV will fix the problem....

Ouch, that sucks. I came across a guy (can't remember if it was this forum or not) that had 3! G valves fail on him...

[Kevin2772]

Well like i said in another thread. Went home last night after all these posts and the CEL came on! F-ing car is 5 months old! Ahh well, its just metal! I reprogrammed back to stock and told them to look at the DV and PCV. We'll see what they find. I had to request a very mod friendly tech so hopefully he'll know whats up and take care of the issue. I'm trying to get my sales rep to email me with what the error code was. Hes a buddy of mine and a main advocate behind me getting it chipped.

...it also helps i have a certified APR installer 7 mintues from my house!

[Kevin2772]

Ouch, that sucks. I came across a guy (can't remember if it was this forum or not) that had 3! G valves fail on him...

Do you know if he was chipped?

[Kevin2772]

Well after 2 weeks of having it chipped, i tore the DV. It was fixed under warranty. Hopefully it will hold while I wait for my forged DV to come in!

[GEkido]

i have a chipped 08 2.0T and im trying to tell if mine is torn or not. i drove my car really hard and when i got home i popped my hood just to look and i noticed that two large parts below were red is this bad? or does that happen all the time just after a hard drive?

I was a little concerned about this at first as well. I had seen a video on YouTube with someone with his A4 on a dyno and he was flooring it for a bit. They zoomed in on the turbo and it was glowing red. When i first got the APR program flashed I drove the shit out of my car [evilsmile] and popped the hood and noticed the same, but then I remembered we live here in Miami. HOT AS FU** all the time so I didnt stress it so much. I'm really considering a FMIC but they are a little steep and would prevent me from getting the other mods I want done first so I think i'll wait a bit. Where abouts in the MIA you at Ivory?

[Kevin2772]

So i just got a quote for $250 for the Forged Diverter Valve plus labor and tax.....what has everyone else paid for these things!?!?!

[Kevin2772]

So i took my A4 in yesterday for the CEL coming on. Tech tells me its a torn DV. They replace the diverter valve. Test it a little on the drive home. No whistle. Take it back out a few hours later...whistle is back. So if i had to guess, ive now broken my second diverter valve in a week! Damn chip!