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

 

[Craig Cull]

Hi mate, check the diverter valve, when worn they tend not to hold boost. But it will probably bring up a fault code aswell.
Mine was the same. Or possibly check the condition of the plugs.

 

[t111bul]

Thanks craigcull i'll have a look at the diverted valve and see what condition it's in. I'll also go and see how much a new one is.

 

[Craig Cull]

There about £56 from Audi mate.

 

[hades-]

the DV dont always cause a light on the dash
and the car would feel flat as **** not just at 4500 rpm
but worth checking

 

[APAutomotive]

Is the car mapped?

 

[Craig Cull]

mine didnt bring the light on, but still logged a code.

 

[t111bul]

Hi guys,Took the diverter valve out last night and the diaphragm is torn! I have ordered one for £52 and it's coming tomorrow. I'm still going to check for fault codes this weekend when I can get access to my father inlaws computer.

 

[t111bul]

Here's my old diverter valve!!

 

[Roadrunner146]

I am tempted to look at mine sooner rather than later as my 2.0t quattro seems a little low on grunt.
My old 1.8T Passat seemed quicker.
How long a job is it , to take out and put back.
Brad.

 

[Blackie]

About 15 mins

 

[t111bul]

I have been using the car for a few days now and there is no flat spot anymore. I stills feel not as quick as it did so i have now check for fault codes and this is what i've got.

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