Pre-cat Oxygen Sensors Replacement
03-19-2007, 09:06 PM
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Pre-cat Oxygen Sensors Replacement
The check engine light (CEL) lit up on my 2001 Allroad 2.7T. The trouble codes are: P1113 and P1131; problem with bank 1 sensor 1 and bank 2 sensor 1 - both pre-cat oxygen sensors.
- how easy (difficult) a job is it to replace 'em?
- can someone post (or point to) clear and detailed instructions/procedure to replace the sensors?
- any special tools required?
- after diagnosis, it turned out the bank 1 sensor 1 is bad. Should I replace just that sensor or both?
Thanx!
- how easy (difficult) a job is it to replace 'em?
- can someone post (or point to) clear and detailed instructions/procedure to replace the sensors?
- any special tools required?
- after diagnosis, it turned out the bank 1 sensor 1 is bad. Should I replace just that sensor or both?
Thanx!
03-20-2007, 02:46 AM
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Re: Pre-cat Oxygen Sensors Replacement
Moderate difficulty, it take an experianed tech about 30-40 min. bank 1, about 45 min. for bank 2, if you need instructions you should probably have someone else replace them, a special OXS (oxygen sensor)socket, 1/2 universal joint, extension and ratchet required for bank#2, a more standard OXS socket with 3/8 extension and ratchet for bank 1, only change OXS for bank with DTC (diagnostic trouble code). There are no longer any mileage intervals to replace sensors on OBDII cars. You replace as needed when indicated with DTCs. If bank 2 had a DTC and it was cleared it will most likely be back.
03-20-2007, 06:03 AM
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Are you over 80k miles? The '01 carried an 80k emissions warranty above and
beyond the 50k warranty...I had mine done, but then also had to have the cats done, all after 50k but before 80k...just a thought.
03-20-2007, 06:35 AM
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Re: Are you over 80k miles? The '01 carried an 80k emissions warranty above and
It has about 77k miles on it. I did not know about the warranty since I am the second owner of the car. I will call Audi and check if it is under warranty and if the warranty was transferable in case the owners changed. Thanx for the info.
03-20-2007, 06:41 AM
#5
What Girlroad is referring to is the EPA warranty..
the car is warranted to the EPA (not the owners) for 8/80K miles on very specific components. (ECU, Cats, O2 Sensors) It is in the warranty book if you have it.
03-20-2007, 07:32 AM
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Re: What Girlroad is referring to is the EPA warranty..
I called Audi USA and they said O2 sensors are not covered under the warranty. The warranty is not a manufacturer's warranty but kind of a federal law. Here is the link: http://www.epa.gov/otaq/consumer/warr95fs.txt. And according to it O2 sensors are not covered, unfortunately.
