Is the crankcase rebreather working? What about the catalytic converter?
Oxygen sensors?
-Peter
On Aug 26, 2013 8:29 PM, <eric@megageek.com> wrote:
> OK, if you remember, I asked about a 1991 2500 Chevy pick up that had been
> sitting for 5 years.
>
> We got it running, and it failed inspection for hydrocarbons being too
> high (they were 466 and max allowed was 220ppm)
> The CO% was very low (.68)
>
> So, I checked all the vacuums and they were good. I changed the wires,
> plugs, rotor, distributor cap, and air cleaner.
>
> After that, the HC were dropped to 240ppm (20 points too high.) The CO%
> went up to .94 (still under the max of 1.20.)
>
> So, I'm guessing that I can get it down with an additive or running really
> hot (or cold.)
>
> What is the collective wisdom of what I can do next to get the last 20
> points? Free is best.
>
> Thanks in advance!
>
>
> Eric P
> "Be as beneficent as the sun or the sea, but if your rights as a rational
> being are trenched on, die on the first inch of your territory." Ralph
> Waldo Emerson
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