Failed NOx emissions
#1
Failed NOx emissions
I just failed my Connecticut state emissions retest for 1992 100s. I failed the nitrogen emissions section which is usually due to oxygen sensors, EGR, or catalytic convertor problems amongst other things. I fixed the EGR passage as shown by ARK and IqDOU. I will take it to a mechanic tommorow, I was wondering how much I should expect to pay for oxygen sensor and catalytic convertor replacement?
#2
Re: Failed NOx emissions
The O2 sensor isn't much, but the Cat converter will cost you some serious bucks. My wife had a 1993 CS and replacing the catalytic converter ran us 1200 bucks.
Pray that it is the sensor instead.
AVUSgreg
Pray that it is the sensor instead.
AVUSgreg
Thread
Thread Starter
Forum
Replies
Last Post
CapeCodAudi
A6 / S6 (C5 Platform) Discussion
9
12-05-2007 11:21 AM
mmart6545
A4 (B5 Platform) Discussion
1
01-26-2004 05:09 AM
shaneS4
S4 / RS4 (B5 Platform) Discussion
3
03-03-2003 08:35 AM