AudiWorld Forums - 2006 AUDI A8L ... PO221.... EPC / CEL / .. HELP PLS

AudiWorld Forums (https://www.audiworld.com/forums/)

- A8 / S8 (D3 Platform) Discussion (https://www.audiworld.com/forums/a8-s8-d3-platform-discussion-60/)

- - 2006 AUDI A8L ... PO221.... EPC / CEL / .. HELP PLS (https://www.audiworld.com/forums/a8-s8-d3-platform-discussion-60/2006-audi-a8l-po221-epc-cel-help-pls-2874147/)

2006 AUDI A8L ... PO221.... EPC / CEL / .. HELP PLS

HI I HAVE A 2006 AUDI A8L .... MY epc LIGHT CHECK ENGINE LIGHT AND THE TRIANGLE SIGN FOR TRACKING I THINK CAME ON TOGETHER ,,,, WHEN I SHUT DOWN THE CAR AND RESTART IT THE EPC AND TRIANGLE SIGN WILL GO AWAY BUT THEN SOMETIMES COMES BACK WHILE DRIVING.... CEL STAYS ON ... BUT ON SOME STARTS THE CEL GOES AWAY TOO ... I READ THE CODE WITH SCANNER AND ITS p0221 ... THE GUY AT THE parts store says it the the throttle position sensor but he could not find one in his computer .... said i might need to buy whole new throttle body ? is tht true and is that whts wrong with the car ?

also whenever the epc light comes on with the triangle sign i loose power as if the car is not running properly i can still go upto 70mph but it goes slow

help pls thanks

could someone tell me where is the throttle positon sensor or throttle body located on this car

thank you

You need VCDS scan. It will tell much more than only that one code.

Address 01: Engine Labels: None
Part No SW: 4E0 910 560 P HW: 4E0 907 560
Component: 4.2L V8/5V G 0010
Revision: --H01--- Serial number: AUX3Z0ED781626
Coding: 0007773
Shop #: WSC 02313 785 00200
VCID: 2E53B878B9B47E51CD7-807B

3 Faults Found:
17579 - Angle Sensor 2 for Throttle Actuator (G188) Implausible Signal
P1171 - 008 - - Intermittent - MIL ON
Freeze Frame:
Fault Status: 10101000
Fault Priority: 0
Fault Frequency: 17
Reset counter: 255
Mileage: 324160 km
Time Indication: 0

Freeze Frame:
RPM: 1390 /min
Load: 29.4 %
Speed: 0.0 km/h
Temperature: 10.0°C
Temperature: 12.0°C
Absolute Pres.: 0.0 mbar
Voltage: 11.049 V

18061 - Please check DTC Memory of ABS Controller
P1653 - 008 - - Intermittent
Freeze Frame:
Fault Status: 00101000
Fault Priority: 0
Fault Frequency: 27
Reset counter: 255
Mileage: 324160 km
Time Indication: 0

Freeze Frame:
RPM: 2087 /min
Load: 14.1 %
Speed: 115.0 km/h
Temperature: 90.0°C
Temperature: 12.0°C
Absolute Pres.: 0.0 mbar
Voltage: 14.224 V

17950 - Angle Sensor 1 for Throttle Actuator (G187)
P1542 - 008 - Implausible Signal - Intermittent
Freeze Frame:
Fault Status: 00101000
Fault Priority: 0
Fault Frequency: 1
Reset counter: 255
Mileage: 324734 km
Time Indication: 0

Freeze Frame:
RPM: 651 /min
Load: 18.0 %
Speed: 0.0 km/h
Temperature: 91.0°C
Temperature: 22.0°C
Absolute Pres.: 0.0 mbar
Voltage: 14.605 V

Readiness: 0000 0100

-------------------------------------------------------------------------------
Address 02: Auto Trans Labels: 09E-927-156.lbl
Part No SW: 4E1 910 156 E HW: 09E 927 156 B
Component: AG6 09E 4,2L5V USA 0100
Revision: --H01--- Serial number: 0074815
Coding: 0000002
Shop #: WSC 02313 785 00200
VCID: 25414754EC423D093CD-8070

No fault code found.

-------------------------------------------------------------------------------
Address 03: ABS Brakes Labels: 4E0-910-517.lbl
Part No SW: 4E0 910 517 B HW: 4E0 614 517 BC
Component: ESP 5.7 allrad H44 0510
Coding: 0007597
Shop #: WSC 02313 000 00000
VCID: 224B5C48FD6CCA3159F-8077

1 Fault Found:
01314 - Engine Control Module
013 - Check DTC Memory

I am having the same issue with my A8. Same codes too. All O2 sensors have been replaced, PCV replaced, and Spark plugs replaced. The fuel filter is on order and It’s time for a new battery this week. I’ve been following these “ECP problem” threads for a while now. To no avail. Oh and I’ve searched for vacuum leaks EVERYWHERE. NOTHING. I will be following your thread. Hopefully one of the AudiWorld experts can shed some light for the both of us.

Wow its an old thread and brings some memories back, i have since sold the car but if i remember correctly i believe it was my abs module going bad and i had sent it to someone online who repaired it and sent it back google some info on it im sure you'll come across some info on this issue as im sure alot of us have had or are having this issue... i currently own the d4 a8 but after this im gonna just buy a lexus f sport or something n just njoy life im getting to a point car problems are not worth my time i want a reliable yet luxury car but dont want to be online for days or hours searching for a solution or be at dealers mercy that he will fix the problem 1st time after charging 1k or anything on these cars and wont play mechanic on me lol

Hope it helps

Quote:

Originally Posted by liljoey99 (Post 25285862)

Hello Liljoey,
You do realize that this thread is from 2014, and dildildil has not been active for the last 15 months...
Being you state that you have the same codes as the OP, did you check either G187 or G188, it seems you have done everything but.

https://cimg9.ibsrv.net/gimg/www.aud...df2dfba6ff.png

Quote:

Originally Posted by Giovanni Giovino 6.0+6.0TT (Post 25285871)

I am still alive haha, but yes this sounds familiar the issue is with this module somewhere i believe you can either buy a new/used one and program to ur car or get urs repaired

I certainly hope it’s not the ABS module again. Had that replaced about 6mo ago by Audi service shop here inGermany. Think I’ll be taking your route and let her go. I’m up there in age as well and am losing interest in the constant issue with it.

Appreciate the quick response.

I had this exact issue. Ended up replacing the throttle body with an ebay one. Since then it hasn't surfaced.

Thanks for the reply GIOVANNI. LOL. I noticed after the fact. Appreciate the throttle control note. I have in fact taken it apart and gently cleaned it as other threads have suggested. It was good for about 60 km and started with the same issue again. EPC/ESP, horrible fuel consumption etc. so I clear all codes and do it all over again every 20km or so. Story of my life.