Thanks Dennis. What would you define as "over advanced?" I try to run it at
around 10* btdc.

On Tue, 22 May 2007 23:17:40 -0400, Dennis Haynes <d23haynes57@HOTMAIL.COM>
wrote:

>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?