Misfires, No Brakes, Super bad Idle,*** UPDATE: IT WAS THE W/M KIT!!!!***
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Misfires, No Brakes, Super bad Idle,*** UPDATE: IT WAS ... - 4/20/2008 4:10:20 PM
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ThePaintballGuy
Posts: 4283
Joined: 8/25/2006
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Ok, I am at a complete loss right now with my car. I just did some work on it and now it is running like crap. Before I did the work on it it ran fine. Here is what I did:
1. Replaced all 6 spark plugs with NGK BKR7E's gapped to .028.
2. Installed a GIAC-X ECU (This I did before yesterday and it ran fine).
3. Installed a Water/Meth Kit.
So now that thats out of the way here is what happened.
Last night when I finished the water meth kit install I started the car and it ran great. No problems at all. Then I started to get one or 2 random misfires while I was dialing in the water/meth system. I figured it was just from a bad setting. They went away and all was well for another 10 min or so. THen it started to mis while I was idling. It would miss for about 30 sec or so then quite for a while then come back again. It was getting late so I went to bed and and decided to tackle the problem today.
Well today came and I looked around a bit and saw that another person was having missing problems because of a dirty check valve on the W/M kit so it was leaking w/m into the intake during idle. Well I took the check valve out and opened it up and its fine. Put it back in and still have the problems. Except now I don't have brakes and it misses all the time. It's cylinders 2,3, and 6. They are missing at all RPM ranges. I have taken the spark plugs out and checked them. They were a little wet but not bad so I put them back in. Still misses. I have checked the brake booster line to see if it had come off but it is still attached. Now I am completely stuck. I have even switched out the stock ECU for the Chipped one and it still didn't do anything.
How do you do a pressure test on the 2.7T? I am running out of time to figure this out. I need my car tomorrow. Anyone with any ideas at all please LMK so I can try it out.
Oh and do you think it's possible for 3 of the 6 coilpacks to die all at the exact same time?
Josh
*********EDIT**********
PROBLEM FOUND... NOT SO GOOD!
UMMM..............
So I don't know if anyone else did this wrong too... BUT I figured out what cause all my problems and it WAS in fact the W/M Kit.....
Here is what happened... When i was installing the W/M kit the nozzles have that little screen thing on them... WELL I guess those are NOT supposed to be put into the air stream... SO thats right apparently I put the nozzles' in upside-down and you guessed it one came off and got sucked through the engine... THUS bending an intake valve, destroying a piston and possibly the turbo... We can't see the turbo however so don't know for sure...
SO if anyone else made the stupid mistake like me of installing the nozzle upside-down, SWITCH IT ASAP!!!!!!!!
I called Devils own and they said "Sorry... we can't do anything..." It would have been nice if they showed some instructions on how the nozzle is supposed to me mounted for people like me who have not done one of these setups before.
SO yeah... this freaking freaking freaking sucks.
BTW, the Head Gasket is fine. 
Josh
< Message edited by ThePaintballGuy -- 5/9/2008 4:35:27 PM >
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quote:
ORIGINAL: Leonardo DaVinci
"Once you have tasted flight, you will forever walk the ground with your eyes turned skyward, for there you have been and will always want to be."
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RE: Misfires, No Brakes, Super bad Idle, Searched, Stil... - 4/20/2008 5:54:15 PM
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audi ops
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my god man, I don't know what to tell you, yeah i guess three coil packs could go at the same time, if the car is missing it will crack the coil packs, look at them top and bottom to see if they cracked. The brakes went out? Wtf? If I was you I would rip that w/m kit off there in a hurry and see if you bumped anything, I have know idea about w/m kits and what they do or affect. Hope you can figure this out, I know alot, but your problems just aren't related. The only thing I can see from my standpoint is your w/m kit thing.
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RE: Misfires, No Brakes, Super bad Idle, Searched, Stil... - 4/20/2008 7:29:00 PM
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ThePaintballGuy
Posts: 4283
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I am 99.999999% sure it's not the W/m kit. I have it completely disabled and it is not fixing anything. I did not see any cracks on the coilpacks. I am just finishing up with a pressure test and so far can not find anything. I am then going to move the ICM's around and see if the misfires follow them.
Josh
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quote:
ORIGINAL: Leonardo DaVinci
"Once you have tasted flight, you will forever walk the ground with your eyes turned skyward, for there you have been and will always want to be."
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RE: Misfires, No Brakes, Super bad Idle, Searched, Stil... - 4/20/2008 7:34:07 PM
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CamoA6
Posts: 631
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From: New Haven, CT
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Did you touch any of the sensors on the airbox or move the airbox?
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RE: Misfires, No Brakes, Super bad Idle, Searched, Stil... - 4/20/2008 7:54:20 PM
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ThePaintballGuy
Posts: 4283
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Yeah I had to take the airbox completely off.
Josh
_____________________________
quote:
ORIGINAL: Leonardo DaVinci
"Once you have tasted flight, you will forever walk the ground with your eyes turned skyward, for there you have been and will always want to be."
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RE: Misfires, No Brakes, Super bad Idle, Searched, Stil... - 4/20/2008 8:01:18 PM
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ThePaintballGuy
Posts: 4283
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Ok, Just swapped the ICM's around and I am still getting misfires on the same... sort of... cylinders. I am getting misfires on 3,4, and 6 now instead of 2,3, and 6. Cylinder 3 seems to be the works. After about 15 sec of idle 3 had almost 200 misses while the others were around 20-30. I think I am going to switch some coil packs around now.
josh
_____________________________
quote:
ORIGINAL: Leonardo DaVinci
"Once you have tasted flight, you will forever walk the ground with your eyes turned skyward, for there you have been and will always want to be."
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RE: Misfires, No Brakes, Super bad Idle, Searched, Stil... - 4/20/2008 8:40:58 PM
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ThePaintballGuy
Posts: 4283
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Another update:
I jsut swapped some of the coil packs around and the misfires do NOT follow them. They are still missing the same place as before. I now seem to have a vac leak but I can not find it. According to the pressure test there were no leaks. Could there be one somewhere else? Or is it just because the engine is working harder to keep itself running thus making it so it looks like there is a leak? The vavuum reads about -8HG. Where should I look? I have looked at all the big hoses, checked all the little fittings and can't find anything.
Oh and I tried unpluggin the MAF and that didn't do anything either.
Josh
_____________________________
quote:
ORIGINAL: Leonardo DaVinci
"Once you have tasted flight, you will forever walk the ground with your eyes turned skyward, for there you have been and will always want to be."
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RE: Misfires, No Brakes, Super bad Idle, Searched, Stil... - 4/21/2008 6:57:30 AM
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readimag
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maybe you should try regaping the plugs back to stock at .30 and see what happens. i had this problem also along with my two o2 number ones went bad, i changed that and they went back to working fine, also i am gaped at .30 and have a giac profile.
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2000 s4
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RE: Misfires, No Brakes, Super bad Idle, Searched, Stil... - 4/21/2008 10:37:02 AM
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CamoA6
Posts: 631
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From: New Haven, CT
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Make sure you have stock plugs in the car on stock gap and double check the sensors on top of the airbox. make sure they are all snapped on tight.
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RE: Misfires, No Brakes, Super bad Idle, Searched, Stil... - 4/21/2008 10:47:05 AM
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ThePaintballGuy
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Wait, you want me to put my old plugs back in there? I know a few guys that are running the NGK's that I am using and don't have any problems. THey are gapped to .028 as well. It ran perfect or a while then just quite. I have checked, and rechecked the ICM's as well.
Josh
_____________________________
quote:
ORIGINAL: Leonardo DaVinci
"Once you have tasted flight, you will forever walk the ground with your eyes turned skyward, for there you have been and will always want to be."
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RE: Misfires, No Brakes, Super bad Idle, Searched, Stil... - 4/21/2008 2:38:55 PM
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eliTTe
Posts: 1340
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From: Columbia, SC
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yeh my car runs fine on the bkr7e's at .028
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1985 Audi Coupe GT
2002 Audi TT 225QC- gone
2000 Audi S4 stg 2, Imola yellow sport package
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RE: Misfires, No Brakes, Super bad Idle, Searched, Stil... - 4/21/2008 3:35:04 PM
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readimag
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yeah i know cars do run fine at .28 gap but i was jsut saying try the bigger gap and see what happens if you are still getting the same problems. Or maybe all hell broke lose in your car and it wants ko4s lol *wish that was true*.
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2000 s4
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RE: Misfires, No Brakes, Super bad Idle, Searched, Stil... - 4/21/2008 4:41:53 PM
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ThePaintballGuy
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LOL, I hope it doesn't... or at least not yet... and besides, I am not putting K04's in my car. It's getting special treatment. Something a lot of people DON't do. 
Josh
_____________________________
quote:
ORIGINAL: Leonardo DaVinci
"Once you have tasted flight, you will forever walk the ground with your eyes turned skyward, for there you have been and will always want to be."
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RE: Misfires, No Brakes, Super bad Idle, Searched, Stil... - 4/21/2008 6:30:27 PM
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eliTTe
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quote:
ORIGINAL: ThePaintballGuy
LOL, I hope it doesn't... or at least not yet... and besides, I am not putting K04's in my car. It's getting special treatment. Something a lot of people DON't do.
Josh
oh GT25r's then!! I see
_____________________________
-Lucas
1985 Audi Coupe GT
2002 Audi TT 225QC- gone
2000 Audi S4 stg 2, Imola yellow sport package
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RE: Misfires, No Brakes, Super bad Idle, Searched, Stil... - 4/21/2008 6:35:36 PM
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ThePaintballGuy
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Nope, still wrong... possibly more details later.
josh
_____________________________
quote:
ORIGINAL: Leonardo DaVinci
"Once you have tasted flight, you will forever walk the ground with your eyes turned skyward, for there you have been and will always want to be."
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RE: Misfires, No Brakes, Super bad Idle, Searched, Stil... - 4/21/2008 7:54:21 PM
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ThePaintballGuy
Posts: 4283
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ok so I just tried moving the coil pack that was giving the most misfires, cylinder 3, and switched it with the one that was not missing much, cylinder 2. Guess what!?!?! Cylinder 3 still misses most. I am so confused! Maybe it's the spark plug fouled up so I am going to swap spark plugs next just to see if that does anything. If so then I will go and buy new ones... again... and see if that fixes my problems. I still can not find any boost leaks so I am guessing the low vac is due to the misfires. I will let you know whats going on as soon as I can get them all swapped around.
Josh
_____________________________
quote:
ORIGINAL: Leonardo DaVinci
"Once you have tasted flight, you will forever walk the ground with your eyes turned skyward, for there you have been and will always want to be."
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RE: Misfires, No Brakes, Super bad Idle, Searched, Stil... - 4/21/2008 8:08:19 PM
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readimag
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maybe you heads are getting wet cause you have a gasket leak (see if the plug is wet when it comes out) on the heads on that side and need to replace it, idk i would try that or run some seafoam threw it to clean it some what. you going to get some rs6 turbos those i hear are balls fast.
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2000 s4
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RE: Misfires, No Brakes, Super bad Idle, Searched, Stil... - 4/21/2008 8:25:26 PM
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ThePaintballGuy
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Ok, I just tried switching the spark plugs and still no change. I now get misfires on 4 of the 6 cylinders. Here are the codes I just pulled:
VAG-COM Version: Release 409.1-S
Control Module Part Number: 8D0 907 551 J
Component and/or Version: 2.7l V6/5VT G 4000
Software Coding: 06751
Work Shop Code: WSC 06325
5 Faults Found:
16684 - Random/Multiple Cylinder Misfire Detected
P0300 - 35-00 - -
16687 - Cylinder 3 Misfire Detected
P0303 - 35-00 - -
16690 - Cylinder 6 Misfire Detected
P0306 - 35-00 - -
16686 - Cylinder 2 Misfire Detected
P0302 - 35-00 - -
16689 - Cylinder 5 Misfire Detected
P0305 - 35-00 - -
As you can see it's the back 4 cylinders. The front 2 are fine. What else could be causing this? I am so lost right now. I want to burn my car.
And no. No RS6 turbos. Looking into doing a single GT35 or something along those lines. Please don't turn this thread into that though. I will make another post later about it.
Josh
Hey, what is this? It's coming off the coolant expansion tank. Doens't look like it goes anywhere?
< Message edited by ThePaintballGuy -- 4/21/2008 9:11:29 PM >
_____________________________
quote:
ORIGINAL: Leonardo DaVinci
"Once you have tasted flight, you will forever walk the ground with your eyes turned skyward, for there you have been and will always want to be."
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RE: Misfires, No Brakes, Super bad Idle, Searched, Stil... - 4/22/2008 12:01:07 AM
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ThePaintballGuy
Posts: 4283
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Just tried it with the new plugs and still am misfiring. No change at all... Not even the slightest. AHHHHHHHHHHHHHHHHHHH
So... I think I am done for tonight.
Any more ideas? I am going to be towing it to a buddies shop tomorrow to see if we can figure it out there.
Josh
_____________________________
quote:
ORIGINAL: Leonardo DaVinci
"Once you have tasted flight, you will forever walk the ground with your eyes turned skyward, for there you have been and will always want to be."
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RE: Misfires, No Brakes, Super bad Idle, Searched, Stil... - 4/22/2008 7:41:17 AM
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ThePaintballGuy
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Pretty sure it's just an overflow tank. It's number 15 in the picture above.
Josh
_____________________________
quote:
ORIGINAL: Leonardo DaVinci
"Once you have tasted flight, you will forever walk the ground with your eyes turned skyward, for there you have been and will always want to be."
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RE: Misfires, No Brakes, Super bad Idle, Searched, Stil... - 4/22/2008 8:24:25 AM
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ThePaintballGuy
Posts: 4283
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OK so just to make it easier on everyone here is a list of everything I have tried with the outcome of each test:
1. Checked W/M check valve - clean, still having misfire problems.
2. Completely disconnected the W/M kit - still having misfire problems.
3. Switched Coilpacks around - still have misfire problems on same cylinders. Did not follow coilpacks.
4. Pulled and tested the ICM's - both are good (according to the test) and still have misfire problems.
5. Swapped ICM's - still misfiring on same cylinders
6. Swapped spark plugs around to see if misfires follow them - no go, misfires still on same cylinders as before.
7. Replaced all the spark plugs with new ones - still having misfires on same cylinders
8. Pressure test - could not find anything leaking. Still having misfires.
9. Visually inspected all all the vac lines - could not find anything. Still misfires.
I am pretty sure thats it.
Here is my list of what I am going to try again today when I get off work:
1. Disconnect the wire from the MAP sensor that goes to the W/M kit and see what happens.
2. Compression Test (If this fails I will be ROYALLY PISSED!!!!!)
3. Spray down the engine with soapy water and re-try the pressure test.
4. Check all fuses that have to do with fueling... I will probably check them all anyways.
5. Throw a freaking wrench.
6. Have it towed to a buddies shop and see if a fresh set of eyes can find anything.
If anyone has any other ideas of stuff for me to try please please please LMK. I am getting desperate.
Josh
_____________________________
quote:
ORIGINAL: Leonardo DaVinci
"Once you have tasted flight, you will forever walk the ground with your eyes turned skyward, for there you have been and will always want to be."
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