Hello,

So i've been hitting this error code for about 3 months when I slowly accelerate in 2nd gear and I hit 3800-4000 rpm the car stalls right away and goes into limp mode with MIL.
If I restart the engine the MIL goes away but the intermittent code stay until I clear it with VAG-COM.
I did not get this error code previously so I tought something might have broken in the car.

According to http://wiki.ross-tech.com/wiki/index.php/17743/P1335 there can be several things that can cause this, so I did the following:
- Intake hose(s) or intake system leaks (Unmetered Air) after MAF == NO LEAKS
- Mass Air Flow Sensor (G70) faulty (replaced it with a brand new one)
- Engine Coolant Temperature sensor faulty (replaced it with a brand new one)
- Restricted Air or Fuel Filters (cleaned out my K&N filter and replaced fuel filter)

The only thing I did not do is to check the Check Intake Air Temperature sensor because according to VAG-COM the temperature values seemed sane for me. The only thing that changed since summer when I did not get this code is that now it's kinda humid and cold outside (- 5-8 C).

THe other thing is that I do not get this error when i am doing 100% TPS, where according to my vag-com logs I get up to 499nm. The max specified torque specified by ASR is 599.9.
Why the hell does it think that I exceed that by doing 50% TPS in 2nd gear.

The car is a S4 B5 (2000.05 from Switzerland) has RS4 K04 turbos, 85mm MAF, a high flow fuel pump, stock injectors and stock FPR.
Initially it came with a D-box but I managed to get parts from a crashed S4 from the UK which was running the above setup.
Unfortunately that car had an encrypted chip on an A-box, without any pointers to it's actual tuners, so if it is a software problem, I can't really fix that, unless I flash an M-box flash to my D-box (which works fine), but I don't really want to loose the tune I have because I don't feel confident enough to start out with my own tune.
I have basically no other issues with this ECU it pulls as hard as it should, unless I do half-throttle in 2nd gear. It does not happen in any other gears.

So does anyone have any idea what can cause this issue? I would be happy to do logging as much as needed, and I would really appriciate if someone could give me some pointers.

Thank you guys!

It could be a tuning problem: http://nefariousmotorsports.com/forum/index.php?topic=1371.msg14368#msg14368

KFMIZUFIL -> FFs
KFMIZUOF -> 00s
KFMIZUNS -> FFs
KFMI_UM -> updated to reflect KFMIOP
KFMPNS_UM -> FFs
KFMDZOF_UM -> FFs
KFMPED_UM -> FFS

Try these! Just in case...

Let me say again, the car was running fine until end of 2011. I only got this starting last month, so it has to be either environment related or some faulty component.

Since I have a D box I can flash an M firmware onto it, but unfortunately I haven't found one for my setup yet that i can start out with.

I've taken it to a guy who had the equipment to read the flash and now I am trying to get the actual file from him, but he told me that the maps are swapped so I guess it would be useless anyways.

Oh i got this lovely code back with berttos' and tony's stage 3 file as well after we got a 10 celsius drop in temperature during the day 27 celsius vs 17 celsius with some rain and more humidity so i guess that the weather actually makes a difference in this case. I havent tried zeroing the suggested maps yet because i would really love to actually understand this problem better. Is it possible that the long term fuel trims were adjusted to the warmer weather and the sudden drop actually f**ked things up? Thanks in advance for the input!

I've done some logging today with VAG-COM because I could not get ME7Logger working yet.

The CSV is available at https://docs.google.com/spreadsheet/ccc?key=0AhrG40GHpr-hdG9DdzJTMVNZTm0wTWgwQTlRR1dBX0E

You can see that at row 322 I switched to 3rd gear and tried to pull away with about 25% of TPS and at row 327 I got dumped into LIMP mode with the usual control limit exceeded DTC.