Converter Question
Well my CAT is bad have the PO420 on for a bit now, I have an 03 A4 1.8T AWD I want a stock replacement how many O2s are there on the stock cause I seen some options with one wanna make sure I order the right part
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There are 2 o/2 sensors. One before & one after.
Use dealer only cat or you will be doing it again next year. Most aftermarket cats have about 1/2 the internal material of a OE cat. |
Most of the time that code signifies a bad cat. No the sensor. But u can replace the sensor and see how that goes. If it dont work u can try to use a o2 spacer on the sensor to get the right readings or go dp or hfc tp .
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The indie shop that does all my work told me the O2 sensors are good for about 100k miles. I just replaced my cats (P0420 and P0430) with a Billy Boat downpipe kit and replaced all four O2 sensors with oem Bosch. The bad news - I still get the CELs after driving ~100 miles. Researching why.
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Originally Posted by ppgoal
(Post 1364022)
The indie shop that does all my work told me the O2 sensors are good for about 100k miles. I just replaced my cats (P0420 and P0430) with a Billy Boat downpipe kit and replaced all four O2 sensors with oem Bosch. The bad news - I still get the CELs after driving ~100 miles. Researching why.
Also might want to check for software update. Audi has a software update to correct p0420 & 430 codes on some vehicles. |
Originally Posted by ppgoal
(Post 1364022)
The indie shop that does all my work told me the O2 sensors are good for about 100k miles. I just replaced my cats (P0420 and P0430) with a Billy Boat downpipe kit and replaced all four O2 sensors with oem Bosch. The bad news - I still get the CELs after driving ~100 miles. Researching why.
Test Pipe p0420 fix? http://forums.evolutionm.net/evo-how...cel-light.html |
I'm guessing software update is.dealer?
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I might do that spacer and return the cat what do you guys think?
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Originally Posted by joeyac02
(Post 1364099)
I might do that spacer and return the cat what do you guys think?
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i would run the spacer first before u return the cat.
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