[ba] CO meter- NAC

Buchholz, Steven Steven.Buchholz at kla-tencor.com
Mon May 6 10:50:07 EDT 2002

Javad may be right, but I'd recommend digging a bit deeper as well ... to do
that we need more info.  First, what kind of car are we talking about?
Second, what part of the test is failing?  Is it the idle test or high
speed?  Does the CO percentage jump between the two values at a single test?
If that is the case, I would not suspect a cat myself.  Have you had the car
tuned up?  I always install a set of new spark plugs and check things like
dist rotor and spark plug wires ...

Steve Buchholz
San Jose, CA (USA)

> Brian, if the car is running fine, I'd say look at the cat, I
> had the worst
> time with my 4kq, and it turned out to be that the cat was
> just not working,
> despite having a perfect looking core.  Swapping in a new
> $125 cat solved the
> problem perfectly.
> Not saying that it IS the cat, but very good chance, esp. if
> you have the
> original cat on there.
> HTH,
> Javad
> In a message dated 05/04/2002 2:58:50 PM Pacific Daylight Time,
> bdevlin at stanford.edu writes:
> > My non-Audi just failed a smog test due to some kind of intermittant
> > problem. It runs just fine whether it's making 0.04% or 4% CO, so
> > I'll need a CO meter to diagnose this. Anybody known of a place to
> > buy one locally? Will it cost an arm AND a leg? Or just a
> few fingers?

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