Is there a way to test O2 sensors? I'm guessing the cat isn't poisoned
since it doesn't smell. How do I check a crankcase rebreather? This is a
91, so there is no OBD II Connector.
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
Peter Murray <peterwmurray@gmail.com>
08/26/2013 08:19 PM
To
eric@megageek.com
cc
shop-talk@autox.team.net
Subject
Re: [Shop-talk] High Hydrocarbons
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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