K04 sputtering problems.....

Reply Subscribe

Thread Tools

Search this Thread

Jun 14, 2004 | 02:31 PM

blodi

Thread Starter

New Member

Joined: Mar 2004

Posts: 87

Likes: 0

K04 sputtering problems.....

Im having trouble with my K04 working correct in my 97. I just updated the MAF today to a 99 model, and it didn't change anything, the problem is when I floor it and the boost builds it starts sputtering like crazy, if I only floor it at higher rpms it works sometimes with out sputtering.
I have a k04-15, 5 bar fpr, RVM bypass valve, giac software.
I tried doing the TB adaption, I tried swtiching back to the stock FPR, nothing changed.
I still have the bypass valve running with no spacers in it to make it any harder, would that create this? Should I try adding spacers or even the stock bypass valve?
The car ran fine with this setup with the stock chip in it, but once I put the chip in, this all started, but I don't know that it would be just the chip because the boost levels are much higher now so it could cause something else to show up.
Any ideas? PLEASE!

Jun 14, 2004 | 02:33 PM

simply J

Senior Member

Joined: Sep 2001

Posts: 8,136

Likes: 0

did you check your vacuum lines?

if you haven't replaced them already odds are they are dry and cracked.

Jun 14, 2004 | 03:23 PM

::Relapse::

AudiWorld Senior Member

Joined: Nov 2003

Posts: 1,062

Likes: 0

are you sure the sputtering is from the Turbo... could it possibly be knocking?

what octane are you running on? what is the chip programed for? when it sputters, do you loose boost? do the rpms drop momentarily? what do you mean by "sputtering"?

Jun 14, 2004 | 04:13 PM

DDQ

New Member

Joined: Apr 2003

Posts: 241

Likes: 0

I'd say it's either the BPV, or the N75 valve. Most likely the BPV.

Jun 14, 2004 | 04:53 PM

blodi

Thread Starter

New Member

Joined: Mar 2004

Posts: 87

Likes: 0

Here is what the VAG is coming up with on it.

VAG-COM Version: Release 311.2-N

Control Module Part Number: 8D0 907 557 P
Component and/or Version: 1.8L R4/5VT MOTR HS D00
Software Coding: 06201
Work Shop Code: WSC 06335
4 Faults Found:
16684 - Random/Multiple Cylinder Misfire Detected
P0300 - 35-10 - - - Intermittent
16686 - Shareware Version. To Decode all DTCs
P0302 - 35-10 - Please Register/Activate - Intermittent
16684 - Shareware Version. To Decode all DTCs
P0300 - 35-00 - Please Register/Activate
16686 - Shareware Version. To Decode all DTCs
P0302 - 35-00 - Please Register/Activate

Does this help? Do I have a bad plug? To answer questions, it starts sputtering about 15 lbs of boost or so, it boost then flutters from about 13-15 and rpms hold pretty much still but climb slightly. I have however seen it on a downshift today hit 19lbs then drop once rpms are up. I just ran the old ECU on it and it still runs fine......at 7 lbs.

Jun 14, 2004 | 04:59 PM

blodi

Thread Starter

New Member

Joined: Mar 2004

Posts: 87

Likes: 0

also to ad to my above answers, I am running 93 octane, I believe the chip is set for 91.

Jun 14, 2004 | 06:14 PM

ULuvItBch

New Member

Joined: Oct 2001

Posts: 447

Likes: 0

Sounds Familiar..

I had the same problem for over 2 years now.. Same exact setup (besides the bpv) and the same symptoms.. I'll tell you now it's GIAC's programming. I have 2 different versions of their KO4 program with the same sputtering effects, but at different RPM's. I've tried several different chips and have had 100% better results than with GIAC. I got so fed up with it I decided to stick with the APR KO3 chip with my KO4. Doesn't run the KO4 to it's full potential, but at least it doesn't sputter anymore.
I got tired of this whole thing, so I picked up a 93 RX7. A4 is the daily driver now.

Do a search of my screen name and see my MANY posts on this topic. Good Luck. If you find the problem, drop me a line. By the way, I have a 97, also.