Noobie O 2 CEL fault code and more...................
07-11-2006, 05:53 PM
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Noobie O 2 CEL fault code and more...................
<center><img src="http://www.quattro123.com/A4%20Oil/S4%20B5/MVC-126Acompario.jpg"></center><p>I usually post on the 200 forum.
I have a buddy with a B5 2001 S4 with this fault code which came and went.
Vag-Com gave me this code which means something in the Bentley book.
Does anyone know what it means?
ALSO: What is the "EPC" on his tach mean?
TIA!
-Scott by BOSTON<ul><li><a href="http://www.quattro123.com/S4_B5.htm">Some more info HERE:</a></li></ul>
I have a buddy with a B5 2001 S4 with this fault code which came and went.
Vag-Com gave me this code which means something in the Bentley book.
Does anyone know what it means?
ALSO: What is the "EPC" on his tach mean?
TIA!
-Scott by BOSTON<ul><li><a href="http://www.quattro123.com/S4_B5.htm">Some more info HERE:</a></li></ul>
07-11-2006, 05:58 PM
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Re: Noobie O 2 CEL fault code and more...................
Block three we figured out was the RPM / 10 like most other VAG ECU readings........... the others I don't know about.
Since I don't have that car, I don't have a Bentley for it.
Any clues to what the other 9 measuring blocks are?
Since I don't have that car, I don't have a Bentley for it.
Any clues to what the other 9 measuring blocks are?
07-11-2006, 06:02 PM
#5
Re: Noobie O 2 CEL fault code and more...................
The O2 code says your O2 internal heater is dying on the drivers rear sensor. May actually be the heater; may be a bad connection (check the connector on the firewall).
EPC is throttle by wire. It means Electronic Power Control.
EPC is throttle by wire. It means Electronic Power Control.
07-11-2006, 06:05 PM
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on second thought, i may be confusing with another O2 code, but I am pretty sure that is the same
code I have because I have no cats in my car, and my rear O2's are not in the downpipes right now...
07-11-2006, 06:13 PM
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internal resistance too high is a faultly post cat 02 sensor, or poor connection to the harness.
its a non critical component that will not affect performance in the least.
ignore it until it goes away or gets bad enough to trip the dummy light all the time.
ignore it until it goes away or gets bad enough to trip the dummy light all the time.
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07-11-2006, 06:33 PM
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Re: Noobie O 2 CEL fault code and more...................
The CEL come on in HOT weather in traffic. HAs since gone OUT.
I reset codes by Vag-com just in case.
Thanks for the info!
I also found an explaination of the EPC here:
http://www.s4-mtm.com/images/Audi_S4_engine_english.pdf
EPC stands for Electronic Power Control.
Page 43 of 72, I suspect when you pressed the gas pedal the light came on with the engine not running........................
-Scott by BOSTON<ul><li><a href="http://www.s4-mtm.com/images/Audi_S4_engine_english.pdf">Cool info about the 2.7 Turbo Motor.</a></li></ul>
I reset codes by Vag-com just in case.
Thanks for the info!
I also found an explaination of the EPC here:
http://www.s4-mtm.com/images/Audi_S4_engine_english.pdf
EPC stands for Electronic Power Control.
Page 43 of 72, I suspect when you pressed the gas pedal the light came on with the engine not running........................
-Scott by BOSTON<ul><li><a href="http://www.s4-mtm.com/images/Audi_S4_engine_english.pdf">Cool info about the 2.7 Turbo Motor.</a></li></ul>
