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My CEL - How serious are they?

Old 08-02-2009, 10:58 PM
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Default My CEL - How serious are they?

P-017 "Catalyst System Efficiency Below Threshold Bank 2"

Autozone Explanation: Faulty catalytic converter

Autozone Probable Cause:

1) Rich Air/Fuel ratio
2) Air leak near rear H02S
3) Faulty fuel control H02S


P-430 "Engine Coolant Temperature (ETC) Circuit Low"

Autozone Explanation: Open or short circuit condition

Autozone Probable Cause:

1) Poor electrical connection
2) Faulty ETC sensor


So, does anyone have any suggestions or information? Also, should I disconnect the battery to reset everything or just fix them? Any information helps thanks. I kinda organized it so you could see and read it better. Thanks
Old 08-02-2009, 11:12 PM
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bad coolant temp sensor
Old 08-02-2009, 11:21 PM
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Originally Posted by 2.7Lturbo
bad coolant temp sensor
No way.. I just replaced it. Thats bull, anyway. Thanks though. I forgot that the clip was broken so it probably just fell out.
Old 08-02-2009, 11:21 PM
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How can I find out which catalytic converter or O2 sensor it is since the A6 4.2L has a million of them..
Old 08-02-2009, 11:37 PM
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Originally Posted by Audi42LV8
No way.. I just replaced it. Thats bull, anyway. Thanks though. I forgot that the clip was broken so it probably just fell out.
ok well the comp is gettng a bad signal from it....
Old 08-02-2009, 11:47 PM
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Alright, I'll try cleaning it and re-plugging it. Last time I had a different error for it, and replaced it back in May or June. So, I'll have to secure it in there again. I'll remove battery connection to reset it than clean, replug, and secure it in there.
Old 08-03-2009, 02:55 AM
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Dude. You need to start posting your responses in the correct place within the thread. I'd like to try to help, but this thread is already impossible to follow. PLease, please take a look at threaded view and use the "quote and reply button" to respond to people. This is a mess.
Old 08-03-2009, 09:00 AM
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Originally Posted by 4Driver4
Dude. You need to start posting your responses in the correct place within the thread. I'd like to try to help, but this thread is already impossible to follow. PLease, please take a look at threaded view and use the "quote and reply button" to respond to people. This is a mess.
was that directed at me?
Old 08-03-2009, 09:33 AM
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Originally Posted by 2.7Lturbo
was that directed at me?
No. Your replies are correctly placed, and my reply was made to the root of the thread.
Old 08-03-2009, 10:00 AM
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Originally Posted by 4Driver4
No. Your replies are correctly placed, and my reply was made to the root of the thread.
haha thats what i figured

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