hello Audi mates..
wish you all good times
i noticed in my car lose of power and increase petrol consumption so i did a diagnostic test by OBD11
i am not expert but i think it may be all related and i am asking kindly for your help and guide
Date: 2024-01-09 12:19

VIN: WAUBGC4FXBN001244
Car: Audi A6
Year: 2011
Body type: Saloon
Engine: CAJA
Mileage: 247390 KM

---------------------------------------------------------------
01 Engine

System description: 3.0l V6 TFSI
Software number: 4F1910551B
Software version: 0040
Hardware number: 4F1907551B
Long coding: 01050010190F0160

Trouble codes:
P2257 - Secondary air injektion System Control "A" Circuit low
static
Priority: 4
Frequency counter: 1
Driving cycle: 255
Mileage: 247351 km
Date: 2010-02-05 17:57:15
P0414 - Sec.Air Inj.Sys.Switching Valve A Circ. Shorted
static
Priority: 4
Frequency counter: 1
Driving cycle: 255
Mileage: 247351 km
Date: 2010-02-05 17:57:15
P0417 - Sec.Air Inj.Sys.Switching Valve B Circ. Shorted
static
Priority: 4
Frequency counter: 1
Driving cycle: 255
Mileage: 247351 km
Date: 2010-02-05 17:57:15
P1425 - Evaporative Emission (EVAP) Canister Purge Regulator Valve Short circuit to ground
static
Priority: 4
Frequency counter: 1
Driving cycle: 255
Mileage: 247351 km
Date: 2010-02-05 17:57:16
P0091 - Fuel Pressure Regulator "A" Control Circuit Low
static
Priority: 4
Frequency counter: 1
Driving cycle: 255
Mileage: 247351 km
Date: 2010-02-05 17:57:16
P0090 - Fuel Pressure Regulator "A" Control Circuit/Open
static
Priority: 4
Frequency counter: 1
Driving cycle: 255
Mileage: 247351 km
Date: 2010-02-05 17:57:16
P2009 - Intake Manifold Runner Bank 1 Control Circuit Low
static
Priority: 4
Frequency counter: 1
Driving cycle: 255
Mileage: 247351 km
Date: 2010-02-05 17:57:16
P0140 - O2 Sensor Circ.,Bank1-Sensor2 No Activity Detected
static
Priority: 4
Frequency counter: 1
Driving cycle: 255
Mileage: 247360 km
Date: 2010-02-05 19:35:20
P0160 - O2 Sensor Circ.,Bank2-Sensor2 No Activity Detected
static
Priority: 4
Frequency counter: 1
Driving cycle: 255
Mileage: 247360 km
Date: 2010-02-05 19:35:20
P164E - Oil pressure regulation valve Electrical error
static
Priority: 4
Frequency counter: 1
Driving cycle: 255
Mileage: 247387 km
Date: 2010-02-06 10:20:40

 

i went to local garage.. i replaced breather hose.. new plugs.. cleaned injectors.. cleaned valve manully and replaced high pressure fuel pumb and still getting the same codes and my car start misfiring on 2000 RPM.. i start losing hope guys any help plz

 

When the HPFP fails, it usually is not the HPFP itself, but the pressure transducer/regulator on the HPFP. When this fails, at least on the Simos 6.22 ECU from the pre-facelift cars, it often blows the output from the ECU. I've replaced many ECU's for that issue on them. If you replaced the HPFP and the code for the pressure regulator persists, you may want to investigate the ECU further. 2011 should have Simos 8.30 and I am not sure if that ECU has the same problem as Simos 6.22 or not. Cheapest route is to get a junkyard ECU with matching part number (OK to use one with newer software revision) and get someone to clone your existing ECUto the new one (or do it yourself if you have the right tools). I wouldn't replace the ECU until you have verified that it is at fault. Did you clear all of those codes, and they are still coming back after the repair?

 

I Still got the same codes after clearing msgs.. i checked modules and all good ..i did cleaned the intake.. i noticed also my alternator is oily (leaks fixed allready) and my headlights flirking I don't know if that mean the alternator start to fall but i will try to replace the ECU as well
Thanks for replying

 

Don't replace the ECU unless you are sure it is a problem.

All these codes are still present after the repair?
The car is still leaking oil after the repair?

 

Leaks fixed prior to this issues.. no current leaks.. car run smooth with epc untill certain point then start behave abnormal ..