What is up with A4 check engine lights?

[Tigran Varosyan]

Hi Guys,

I have been in the market for a 96-99 2.8L A4 for the past few weeks. Have
called quite a few of the ads in my area (seattle) and it seems like every
other car has a check engine light that will not go away. WTF is up with
that? Usually, that is some emission control BS - O2 sensors or EGR - all of
that garbage is dealer-only and will run $1-2k to fix... What I am wondering
is why are these problems so common on these cars?



Tyson Varosyan
Technical Manager, Uptime Technical Solutions LLC.
tyson at up-times.com
www.up-times.com 
206-715-TECH (8324)
UpTime/OnTime/AnyTime