2.0T flat spot, helf needed?

[t111bul]

Hi guys,

I have a 2005 2.0T Quattro that has developed a flat sopt at around 4500rpm. I haven't had a chance to get fault codes checked yet. I have had a quick look and found that each coil pack pushed back in bit but thats all that i could see. Has anyone had this problem? Is there anything else i should check?

Thanks

Tim

[paulperrie]

i've got that problem too, mine is a 2006 2.0 T quattro, flat spot is around 5000 rpm.started it about 2 years ago feels like fuel starvation to me, but there is no codes. when it's in for a service with audi i mention it but they can't fault the car. if you find anything out let me know.
Paul

[t111bul]

I havee found on my car that the diverter valve diaphragm is split so i ahve ordered a new one which arrives tomorrow. I'll keep you posted on my progress.

[A4 Lad]

If yous search g247 you will see the same problems that I am having in my thread

[t111bul]

I have been using the car for a few days now and the boost is back and there is no flat spot anymore. I have had the fault codes checked and they are as follows.

012555 - Low Pressure Fuel regulation
P310B - 008 - Fuel Pressure Outside Specification - Intermittent
Freeze Frame:
Fault Status: 00101000
Fault Priority: 0
Fault Frequency: 136
Mileage: 93543 km
Time Indication: 0

Freeze Frame:
RPM: 1309 /min
Load: 28.2 %
Speed: 2.0 km/h
Temperature: 0.0°C
Temperature: 0.0°C
Absolute Pres.: 1030.0 mbar
Voltage: 14.478 V

012600 - Intake Manifold Runner Control
P3138 - 008 - Regulation Deviation
Freeze Frame:
Fault Status: 01101000
Fault Priority: 0
Fault Frequency: 1
Mileage: 99156 km
Time Indication: 0

Freeze Frame:
RPM: 3721 /min
Load: 29.4 %
Speed: 80.0 km/h
Temperature: 85.0°C
Temperature: 15.0°C
Absolute Pres.: 1000.0 mbar
Voltage: 14.224 V

008200 - Intake Manifold Flap; Bank 1
P2008 - 001 - Electrical Malfunction
Freeze Frame:
Fault Status: 01100001
Fault Priority: 0
Fault Frequency: 1
Mileage: 99156 km
Time Indication: 0

Freeze Frame:
RPM: 3717 /min
Load: 29.4 %
Speed: 81.0 km/h
Temperature: 85.0°C
Temperature: 15.0°C
Absolute Pres.: 1000.0 mbar
Voltage: 14.224 V

000665 - Boost Pressure Regulation
P0299 - 002 - Control Range Not Reached - Intermittent
Freeze Frame:
Fault Status: 00100010
Fault Priority: 0
Fault Frequency: 1
Mileage: 99239 km
Time Indication: 0

Freeze Frame:
RPM: 4597 /min
Load: 85.1 %
Speed: 99.0 km/h
Temperature: 87.0°C
Temperature: 31.0°C
Absolute Pres.: 1010.0 mbar
Voltage: 13.970 V

Can anyone help me with these please?