Diagnosis codes, 05 B7 2.0TFSIQ

[Pete@ECSTuning]

Don't get discouraged, it may be unrelated codes! Give it a scan and get back to us!

[grr]

Sorry for the slow response. I appreciate the interest!

The dealer wants my car for a week or so and have the Audi tech drive the car as his "private" car to and from work and other daily stuff, while logging data as he goes, and then involve the official norwegian VAG importer and VAG in Germany. I'm sure they would be able to solve the problem together, and in a week, but it sounds like an expensive solution to me. They weren't willing to do another "off record" readout either, to see if the fault codes had changed, so I took the car to a friend with Autoboss V30, he's read out codes before, but for some reason it didn't work this time. I was tired of asking around and ordered VAG-COM instead, that's why it's taken time. I need to get it solved to get my beauty sleep again!

Sitting in the car as we speak. I'm (so far) actually very impressed with VAG-COM, especially compared to low cost solutions for BMW (Carsoft).

There's five faults this time, it's been four all the time before (at least as far as I know).

Here they are:

5 Faults Found:

008583 - Bank 1; System too Lean at Idle
P2187 - 004 - No Signal/Communication - MIL ON
Freeze Frame:
Fault Status: 11100100
Fault Priority: 0
Fault Frequency: 5
Mileage: 171621 km
Time Indication: 0

Freeze Frame:
RPM: 781 /min
Load: 22.0 %
Speed: 0.0 km/h
Temperature: 76.0°C
Temperature: 7.0°C
Absolute Pres.: 1010.0 mbar
Voltage: 14.224 V

008825 - Leak in Air Intake System
P2279 - 002 - Lower Limit Exceeded - Intermittent
Freeze Frame:
Fault Status: 00100010
Fault Priority: 0
Fault Frequency: 1
Mileage: 171622 km
Time Indication: 0

Freeze Frame:
RPM: 764 /min
Load: 14.1 %
Speed: 0.0 km/h
Temperature: 79.0°C
Temperature: 9.0°C
Absolute Pres.: 1010.0 mbar
Voltage: 14.224 V

012555 - Low Pressure Fuel regulation: Fuel Pressure Outside Specification
P310B - 008 - Implausible Signal - Intermittent
Freeze Frame:
Fault Status: 00101000
Fault Priority: 0
Fault Frequency: 2
Mileage: 171626 km
Time Indication: 0

Freeze Frame:
RPM: 5424 /min
Load: 100.0 %
Speed: 116.0 km/h
Temperature: 81.0°C
Temperature: 12.0°C
Absolute Pres.: 1000.0 mbar
Voltage: 14.097 V

001287 - Idle Control System RPM: Higher than Expected.
P0507 - 001 - Upper Limit Exceeded - Intermittent
Freeze Frame:
Fault Status: 00100001
Fault Priority: 0
Fault Frequency: 3
Mileage: 171641 km
Time Indication: 0

Freeze Frame:
RPM: 877 /min
Load: 14.1 %
Speed: 0.0 km/h
Temperature: 82.0°C
Temperature: 29.0°C
Absolute Pres.: 980.0 mbar
Voltage: 13.970 V

001089 - EVAP Emission Control Sys: Incorrect Flow
P0441 - 002 - Lower Limit Exceeded - Intermittent
Freeze Frame:
Fault Status: 00100010
Fault Priority: 0
Fault Frequency: 2
Mileage: 171680 km
Time Indication: 0

Freeze Frame:
RPM: 775 /min
Load: 22.0 %
Speed: 0.0 km/h
Temperature: 79.0°C
Temperature: 8.0°C
Absolute Pres.: 1010.0 mbar
Voltage: 14.224 V

The first fault also notes "MIL ON" (I've never seen that from the other diagnosis systems?), but I'm guessing it could still be a consequence of another fault?

Any suggestions?

[grr]

I'd also like to mention:

Lately I've noticed a slight rpm drop at idle every now and then after driving.

I haven't had a four cyl. petrol car in quite some time (several years), and my other daily driver are a straight six which you can't feel in the car at idle. I know they can't be compared vibration wise, but I still believe the Audi is a bit more rough at idle than it should be. I can feel quite a lot of vibration in the car, but the rpm is stable, other than the noticeable drop which happens once in a while.

[Pete@ECSTuning]

Your fuel problems sound like classic cam follower issues that we have here in the US. Has your dealer checked the follower?

[grr]

Wouldn't that cause fuel cuts at high revs?

And no, I'm pretty sure they haven't checked it. However the cam chain drive was replaced about a year ago. They replaced the following parts:

06F 198 088 D Repset
06D 103 469 M Cylinder head cover
06F 109 217 A Chain tensioner
06D 109 229 B Camshaft timing chain

Don't know what the repset includes, but I'm guessing seals etc., not the cam follower...

Also I've been driving the car like 100 miles the last two days. The vibrations are quite noticeable now, more than before I'm sure. Also there's like a 200-300 rpm drop after idling a few seconds before it comes back up to normal just below the 800 rpm mark...

[Pete@ECSTuning]

Depending on how bad it is!

You can pop it out yourself and look, it'll take about 5 minutes and be real obvious if it is bad.

[grr]

I read up on the TSB around the net and saw people mentioning 1-2 hours, 5 mins sounds better. Found a DIY for a GTI: http://forums.vwvortex.com/zerothread?id=3750088

I will definitely check mine.

[Lateknight]

It certainly isn't 5 mins.
Getting access to the torx head '****-bolt' (as I call it) or better known as the banjo-bolt in the pump return line. Audi knew this would be an **** to get to and replaced it with a clipped rubber hose in 2007.
Getting at the feed pipe is a game as well - you can only turn it 1/12th of a turn at a time due to the lack of space to wield a spanner.
Apart from that its a breeze

Also see : http://picasaweb.google.com/BJ.McGee...llowerInstall#

[grr]

The dealer measured fuel pressure and then opened up just to make sure everything looks good, and it does. No noticeable wear at all...

We had an unhappy meeting with a XC90 on the slippery roads these days so it's in for some painting++ and will be for a week or two. Will get it back to the dealer for the MIL problem after that.

[Sarge786]

Hi, Any development on this as mine seems to have the exact same fault


Cheers