so wtf is wrong with my car?! f%&!

[Akronnnnnnnn]

So I have been without my car for the past couple days after discovering that the tube from Y valve on the valve cover to the T on block breather housing and the breather hose at the oil filter housing were both brittle and broken. So I went ahead and fixed them tonight since the car was in limp mode.

Now the car doesn't run. It stalls immediately. I can keep it running by keeping the rpm's up but if I put any strain on the car(attempting to move while in gear) it stalls.



some pics of the work today, FWIW:

parts


putting my blood & sweat into the job:


got the valve and stuff accessible. There is supposed to be a lot more to the tube on the right.


and what the parts dept called a "funnel". The entire metal part was broken and stuck in the hole still


this was a massive PITA to get out


in case you were wondering where it was. It was awful to fix.


so now what?

[JoshDub]

Potential Boost leak. Is your maf plugged in?

Or maybe you knocked something else loose.

[Akronnnnnnnn]

Potential Boost leak. Is your maf plugged in?

the only plug I undid was back by the PCV valve, and I put it back. Is that the MAF?

[a4darkness]

x2

Mine sounded and exhibited the exact same behavior when one of my FMIC pipes had popped loose. Granted it was louder but aside of that... just the same.

[JoshDub]

That is not the maf. The maf is the sensor right after the air filter. Unplug that and see if the car keeps running without having to keep the rpms up.

The EXACT same thing happened to me, as well as with Thomas. My intercooler piping blew off of the section that crosses under the radiator. Car would stall out on me under load and without gas. Also happened when my DV blew off while driving.

It is very possible you could have knocked something loose or something else broke. Is that tube at the end of your blue pilers there plugged back in?

[Akronnnnnnnn]

alright, I wasn't going to mess with it again tonight but I'll go unplug the MAF and check the intercooler piping.

yes, the tube by my pliers is plugged back in. that's the PCV valve thing

[a4darkness]

I hate to sound like I'm pimping the engine strengthening thread... but there's a lot of visuals and their respective titles that might help you find the culprit. If she's dyin that fast, it's gotta be a pretty large boost leak.

[JoshDub]

Its worth a check. It just has to be something not hooked up propperly man.

And Thomas, along with others, did a butt load of work in the 1.8T thread. Its a HUGE source of info on these crappy little lines.
http://www.audizine.com/forum/showth...-by-a4darkness

Thanks again for doing that Buddy.

[a4darkness]

Yessir. I just wanted to show off my puuurdy red vac lines. har har har

[Akronnnnnnnn]

I hate to sound like I'm pimping the engine strengthening thread... but there's a lot of visuals and their respective titles that might help you find the culprit. If she's dyin that fast, it's gotta be a pretty large boost leak.

I will check it out tomorrow. I'm definitely spent for the night.

So I went and unplugged the wrong thing(I didn't know it wasn't the MAF at the time). started the car. It wanted to stall but did not. RPMs went to normal and idled smooth. Plugged the thing I unplugged back in. Turned the car off, restarted. it stalled. turned it on again and it ran, idled fine. Took it around the block without it stalling and it is still in limp mode. is this because of the CEL?

Anyway, it's 12:30 and I am done messing with the car for tonight. Hopefully somebody has an idea of what could be up with it now.

[JoshDub]

So you did or didnt unplug the maf? It sounds like you did but you say you didnt.

[Akronnnnnnnn]

So you did or didnt unplug the maf? It sounds like you did but you say you didnt.

no I think it was just a valve.... I read your post as "above the air filter" instead of after. Thus I still don't know where the MAF is. lol

[a4darkness]

I'll have something for you in about 5 min Brian... might help to have some visuals. God knows I always need em. Eeesh.

[Akronnnnnnnn]

looking through your thread briefly, I am afraid to start digging in to find the root of the issue. I am at school and need the car for transportation to work and class. I do not have to time to chase my tail with this garbage. ugh.

[a4darkness]

Exactly why I started it. Well, that and I was tired of looking at my engine bay and thinking... ya know, I'd probably be able to figure this stuff out if I only knew what all this damn stuff was.

Almost done. Kinda writing up something a bit more detailed.

[JoshDub]

Its intimidating but you can get it. It will be a simple fix.



Left side of picture, that wire sensor is the maf.

What the hell did you unplug? That check valve "above" the air box?

[Akronnnnnnnn]

What the hell did you unplug? That check valve "above" the air box?

lol yes.

Thomas, I'll have to get to it tomorrow. Sorry man but I'm tapping out. Gotta be up at 7 and I can't work on the car anymore tonight. TIA though!

[JoshDub]

Quiter

[a4darkness]

lol yes.

Thomas, I'll have to get to it tomorrow. Sorry man but I'm tapping out. Gotta be up at 7 and I can't work on the car anymore tonight. TIA though!

No worries man. Engine Reliability thread has been updated. Should be of help.

Quiter

[Akronnnnnnnn]

Quiter

lol my car was right outside my lower neighbor's windows. didn't feel like starting/restarting the car 100 times at 12:30 at night.

No worries man. Engine Reliability thread has been updated. Should be of help.

Thanks, Thomas. I am thinking of taking tomorrow off to work out the bugs.

[profusion]

Where did you get those parts? Got parts numbers? Thanks,.

[Akronnnnnnnn]

Where did you get those parts? Got parts numbers? Thanks,.

if you click the links in the OP it takes you to ESC Tuning with the parts, but here are the numbers:

long breather hose - 06B103213AK
90 degree elbow breather - 06A103213AM

I got mine from the dealer. keep in mind the top part might be a different hose depending on what model year your car is. Your best bet is to call the dealership with your VIN #. The split is in 04.

[dubgli]

the same exact issue i had and have a thread on it.. I fixed that breather pipe thing and it still didn't fix it.. it was the maf.. looks like you pinpointed it already.. check what the reading is in vagcom for the maf at idle.. it should be 3-5g/s.. I just cleaned the heck out of my maf with maf cleaner spray and it fixed it..

http://www.audizine.com/forum/showth...ghlight=dubgli

[Akronnnnnnnn]

thanks dub. I will definitely give cleaning the MAF a try. Kind of weird that that would be the issue after I had the breather hoses crap out on me. I wonder if/how they are related.

I don't have access to a vagcom though. I wonder if my mechanic would make a house call.

also, if I clean the MAF and it runs smoother will I have to clear the CEL or will it go away on its own?

[Elliott]

CEL will go away after a few cycles. And again, Thomas' maintenance thread is priceless when it comes to figuring out the enigma of the vac lines.

[CyberPMG]

Brian, with the breather hose destroyed, you might want to check the PCV itself. If your '04 is after the split, the PCV is a single piece that contains 2 check valves built inside. Chances are that this got damaged if the hose blew apart. My PCV was shot and caused weird idle RPM issues. Cleaning the MAF will help, but I would keep checking the vacuum line coming out from the engine block on the driver's side and trace it all the way around the back and over to the TIP. This may also involve the jet suction pump (a hard plastic y-pipe). I had to replace nearly everything on the driver's side in order to fix my issue.

Good luck!

[Akronnnnnnnn]

Brian, with the breather hose destroyed, you might want to check the PCV itself. If your '04 is after the split, the PCV is a single piece that contains 2 check valves built inside. Chances are that this got damaged if the hose blew apart. My PCV was shot and caused weird idle RPM issues. Cleaning the MAF will help, but I would keep checking the vacuum line coming out from the engine block on the driver's side and trace it all the way around the back and over to the TIP. This may also involve the jet suction pump (a hard plastic y-pipe). I had to replace nearly everything on the driver's side in order to fix my issue.

Good luck!

thanks a bunch-- what would be the best way to check the PCV valve to know if it's working? You are probably onto something with something being damaged when the hose blew.

Like I said I will try and run down everything tomorrow. Here's hoping I don't have to buy new parts!

[walky_talky20]

I'd try just clearing the codes first. If you had a couple huge leaks in the PCV system, the ECU adjusts over time as those leaks get larger. This called the additive long-term fuel trim. Once you fix those leaks all at once, the ECU is so far adjusted for them, that it can't run properly. Generally it fixes itself after a couple seconds, but if the change was severe enough, it might take a while. The best thing to do is clear the codes with vag-com. That wipes out the stored fuel trim data and starts it from 0% adjustment.

It doesn't make much sense that fixing the broken crap has made it worse. This theory sort of explains that a bit. Good Luck.

[Akronnnnnnnn]

checked the MAF-- unplugged the right thing this time. Car started up, then the TC light came on and the car stalled. it may still be dirty but nice to know that's not it.

But the car is idling "fine". I think CyberPMG may be onto something--it kind of sounds like there is a vacuum leak around that T on the top of the engine by the firewall and the PCV valve. I need to get my hands on some hose clamps so I can take those parts off and inspect them--they've got one time use clamps on there now.

CEL is still on. I really want to reset the codes. any way to do that without vagcom?

[wolfdog]

Is that the PCV slot in your last pic? I have to search for that thing, I keep forgetting. 3rd and 4th runner, yes, but I have no idea where.

[Akronnnnnnnn]

No the hole with the metal in it is the top of the oil filter housing. The PCV valve is in the back of the engine, connected to a tee. Right by the firewall. It almost looks like the DV the way it's circular.

[jetflyr]

I had the return line from my Forge back to the incoming side of the turbo pop off on the highway when passing. Once I pulled oever my car kept doing the exact thing. If I gave it more gas the car sounded like it had a blow off valve. That's my suggestion. As someone said, it sounds like a big boost leak. Not subtle at all.

[chuckA84]

when my breather tube broke in half my car would not run...it would stall right away. i ended up following a different threads instructions on how to remove the whole pcv system and cap the vacuum nipple on the manifold that originally went to the pcv system. it might still be something messed up in the pcv system.

[Akronnnnnnnn]

I've got a local guy coming tomorrow to clear the code. I still want to check out the PCV valve, though. Have all day tomorrow to check it out. Hopefully the weather cooperates, though. The car is outside and we're supposed to get rain.

[n7plus1]

that fix you did is a son of a bitch.

[Akronnnnnnnn]

that fix you did is a son of a bitch.

yes, yes it is. my hands are scratched up to hell from it.

[Akronnnnnnnn]

it's not the PCV valve. took that out, and now I'm having trouble getting everything back in.

the new plastic hose/tube I have is a massive pain in the ass and TBH, I think that's the problem. It doesn't fit snug on the little valve underneath the manifold. I might have to go silicon hose for that.

[dubgli]

it's not the PCV valve. took that out, and now I'm having trouble getting everything back in.

the new plastic hose/tube I have is a massive pain in the ass and TBH, I think that's the problem. It doesn't fit snug on the little valve underneath the manifold. I might have to go silicon hose for that.

you mean it doesn't sit in that cavity opening in the last picture you posted? The last picutre you posted that i'm refering to is a view through the intake manifold.. is that what you're talking about?

[Akronnnnnnnn]

you mean it doesn't sit in that cavity opening in the last picture you posted? The last picutre you posted that i'm refering to is a view through the intake manifold.. is that what you're talking about?

no that is fine, that's the "funnel" or 90 degree hose that goes to the oil filter housing. That's clipped and all good.

I'm talking about the top red line here:


I am going to try and get it back on there. I don't have a car right now and none of my roommates are home so I can't get any heater hose anyway, but once I do I am going to ditch the $53(!) shitty plastic hose and go with the $3 heater hose technique.

[profusion]

no that is fine, that's the "funnel" or 90 degree hose that goes to the oil filter housing. That's clipped and all good.

I'm talking about the top red line here:


I am going to try and get it back on there. I don't have a car right now and none of my roommates are home so I can't get any heater hose anyway, but once I do I am going to ditch the $53(!) shitty plastic hose and go with the $3 heater hose technique.

Mine is an 05 1.8T. Mine broke of from the top redline on your pic. I used a 3/4" heater hose and on the other end a piece of adapter. Cut it to the correct size I needed and had to soften it up by running hot water on the hose to make it easier to bend. Worked fine. It was PITA to work on!