I have a 1999 Jetta GL 2.0L A4. My registration recently came up for
renewal and in order to get it registered I needed to get my first
smog check. I found out this could not be done because the check
engine light was on (It had been on for almost a year). The
temparature guage had just broke so I relplaced it and had the
computer reset thinking that may have been the problem.

After about 300 miles of driving the check engine light came on again.
Okay, I go back to the mechanic and he tells me that his Snap-on
computer reader show the car is running to rich. So I replace both
the O2 sensors, reset computer again and have now been driving on it
for 350 miles without the light coming back on.

Now here's the catch. My mechanic told me to wait at least 200 miles
before I go and get the smog check because the computer needs to
"relearn" my driving habits or whatever. Well I took the car in at
250 miles and failed the smog test because something in the computer
hadn't registered yet. I'm at 350 miles now and the light has not
come back on.

My question...How long does it take for the computer to re-register
completely? I have the smog info as well if that might help.

Thanks,

Phil

First of all you need to take it to someone who knows how to fix the
problem! As for how long, if the car was fixed correctly then it's all done
by about 35miles. "something in the computer hadn't registered yet", this
mostly means the smog tester found on the readiness codes not set. Most
OBDII VW have about 9 "flags" to be set for the car to pass most smog tests.
I can and other dealer techs can set the readiness codes in less then 30
minutes without taking the car out of the shop when using the VW 5051!



"Lophophora" <nope (AT) nope (DOT) com> wrote

In article <4033ecb0$0$249$4d5ecec7 (AT) reader (DOT) city-net.com>,
Woodchuck <stv_euroski (AT) yahoo (DOT) comXXX> wrote:

can you explain a bit more about this 'readiness codes'? I have never heard
of that at all...


--
Eduardo Kaftanski | Some say it's forgive and forget.
e (AT) nn (DOT) cl | I say forget about forgiving just accept.
http://e.nn.cl | And get the hell out of town.

I had no idea that one could set the computer in 30 minutes. The guy
I took it too didn't mention that. Yes one of the flags hadn't set
yet. Either way, it's crucial that I get this thing smogged so that I
can get my new tags.

Here's the exact message:

"This vehicle failed the MIL/check engine light due to failure to
successfully complete all OBD self tests".

Thank you for the reply and I apologize for the duplicate posts.

On Wed, 18 Feb 2004 17:59:50 -0500, "Woodchuck"
<stv_euroski (AT) yahoo (DOT) comXXX> wrote:

Posting you answer over at www.dub-tech.com

"Lophophora" <phz (AT) dslextreme (DOT) com> wrote

In article <40353e75$0$254$4d5ecec7 (AT) reader (DOT) city-net.com>,
Woodchuck <stv_euroski (AT) yahoo (DOT) comXXX> wrote:
puaj. web forums suck.


--
Eduardo Kaftanski | Darwin pone las reglas.
e (AT) nn (DOT) cl | Murphy, la oportunidad.
http://e.nn.cl |

Could you point me to the correct thread. Thanks.

On Thu, 19 Feb 2004 18:01:08 -0500, "Woodchuck"
<stv_euroski (AT) yahoo (DOT) comXXX> wrote: