Date:         Tue, 22 May 2007 23:17:40 -0400
Reply-To:     Dennis Haynes <d23haynes57@HOTMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
Comments:     RFC822 error: <W> MESSAGE-ID field duplicated. Last occurrence
              was retained.
From:         Dennis Haynes <d23haynes57@HOTMAIL.COM>
Subject:      Re: Bummer, man--Gross Polluter
Comments: To: Geza Polony <gezapolony@SBCGLOBAL.NET>
In-Reply-To:  <vanagon%2007052221253706@GERRY.VANAGON.COM>
Content-Type: text/plain; charset="iso-8859-1"

All those readings scream bad cat. The Co indicates the O2 sensor is
working but no clean up to 0 there. The High HC may be what killed the
Cat. Look for a lean miss fire and/or over advanced ignition timing.

The NOx is defiantly bad cat.

Dennis

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Geza Polony
Sent: Tuesday, May 22, 2007 9:26 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Bummer, man--Gross Polluter

Doesn't sound good.


Just had the '84 1.9 smogchecked and results were WAY out of line:

15 mph     HC 148     CO .79     NO   2156
25 mph     HC 96      CO .66     NO   1828


The tester was trying to tell me it looked like a failed cat (mine's 6
months old but engine has been misfiring for that time, too...)

New distributor, hall sender, wires, plugs, cap, rotor, hall control, coil
checks good. No vacuum leaks, AAR checks good, rebuilt AFM, all ECU pins
tests are good per Bentley.

Compression is good at something like 140. Normal power, no oil burning,
rough idle.

It helps the rough idle to disconnect the crankcase hose and plug the boot
hole up.

Ideas? Looks like the state of California will shell out $500 to help fix
it, but what to fix? Could pinholes in the exhaust cause bad HC readings?