Now that I have the readings, except for the possibility of a bad
injector, the fuel injection is not the problem. The CO reading is in
range which indicates the O2 sensor is working along with all the
related mixture control parts. As stated previously, you need to look at
engine or ignition problems.

Dennis

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf
Of Graham Freeman
Sent: Sunday, April 14, 2002 7:58 PM
To: vanagon@GERRY.VANAGON.COM
Subject: '85 Westy GL smog problem

Hi folks,

Yesterday I posted a message about my van's smog problems, and I got
some
helpful responses - thanks!

Again, here are my smog readings:

The C02 readings are:

idle (978rpm): 9.38
2500rpm (2636rpm): 11.52

02 readings:

idle (978rpm): 7.5
2500rpm (2636rpm): 4.1

C0 readings:

idle (978rpm): 0.35
2500rpm (2636rpm): 0.82

The "HC(PPM)" section is the problem.  For that test, the maximum
allowed
measurement is 150ppm @ idle, while my van measures 829 @ idle.  The
maximum allowed @ 2500RPM is 180ppm, while my van measures 614ppm.

Here's the latest:  It turns out there's a pretty big hole in the
muffler,
which looks like it was caused by rust.  Obviously this is a problem,
and
I need a new muffler, but would it affect the HC part of the smog test?

Thanks in advance

-Graham