You really don't need too many miles to get the monitors to run...55mph
steady speed for about 10 miles is normally all it takes. The EVAP monitors
run with the engine OFF and the O2 heater tests run on initial cold startup
(or after sitting for about an hour).
Most newer vehicles will trip the MIL with a high-flow cat...older OBD1
systems are a little more lenient.
- Bernd
-----Original Message-----
From: Mike Guzinski [mailto:mguzinski@gmail.com]
Sent: Wednesday, August 13, 2008 8:13 AM
To: dakota-truck@dakota-truck.net
Subject: Re: DML: RE: RE: Failed Colorado Emissions High NOx A little
long....
Thanks Jon, The truck did just with the NOx levels. I didn't have time to
get it all warmed up and get the OBDII properly programed. I was really
discouraged and didn't think it was going to pass. I was driving the truck
over to one of my construction offices and saw there was no line so stopped
in. I was getting to the point where the 10 day free retest period was
going to expire. I only had about 20 miles
since the cat change and about 30 since the O2 sensors. It's kinda
hard to put many miles on it since the tags expired since I began trying to
get it to pass. I now have over 150 miles on it and no MIL from the high
flow cat change like some members have had. I have 2 years to see if it
passes next time. I think when I get a chance I'll pull the manifold and
clean and put new gaskets on it. Now it's time to work on the 68 Fury i
bought back in March. There was alot of stuff falling out of the cat when I
removed it and I ended up replacing the muffler (the factory seam was split)
as well with a Dynomax straight through....Sounds sweet and performance may
have improved a little. I'm pretty content with it passing
On Tue, Aug 12, 2008 at 7:47 PM, <jon@dakota-truck.net> wrote:
>
> "Mike Guzinski" <mguzinski@gmail.com> wrote:
>
>> PASSED!!!!!!! It's about time! It was a bad CAT. meow! Thanks for
>> everyone's help and advice!!!!!
>
>
> That's great news! Based on your earlier tests, it sounds like your
> cat may have been questionable even when the truck was new? Glad to
> hear that hassle is over (for now). :-) How close were the results?
> Did you just squeak under the line or was there a decent margin?
>
> --
> -Jon-
>
> .- Jon Steiger -- jon@dakota-truck.net or jon@jonsteiger.com -.
> | '96 Kolb Firefly, '96 Suzuki Intruder, Miscellaneous Mopars |
> `-------------------------------- http://www.jonsteiger.com --'
>
>
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