Check your timing carefully Bill. And you've got a tankful of Mohawk in
there right?  And a fresh oil change?

On our old '87 Golf with 1.8 and CIS-E I used to have an AirCare setting and
a 12 month setting.
Twisted the mixture about 35 degrees lean and it passed with flying
colours.  Needs a 3mm Allen wrench - Lordco has them.

Call me if you want at 604-812-7271

On 10/1/07, Dennis Haynes <d23haynes57@hotmail.com> wrote:
>
> Excessive CO is always mixture or passing oil. All three gasses being high
> also indicates a failed catalyst. Do you have CIS-e with the O2 sensor?
> Make sure that is working. Other wise the mixture s adjustable. Also, make
> sure the timing is not over advanced and get the idle speed up around
> 850-950 rpm.
>
> Dennis
>
> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
> Bill MacLachlan
> Sent: Monday, October 01, 2007 10:55 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: I4 emission issues
>
> Hi all...I'm having a time passing the emissions testing this year.
> Get through easily for the past ten, but this time around........I've
> not passed twice in a row.
>
> first test failed on excess CO at idle; all emissions(Hydrocarbons,
> NOx CO )  were significantly higher than the previous year.
>
> replaced plugs rotor cap, set the timing.
>
> second test: emissions down from the first test,but failed on CO2 at
> idle and CO on the driving test.
>
> something is not right.
>
> huh.
>
> Engine is an inline 1800cc with CIS. Hall effect ignition.  I'm
> thinking of pulling the injectors and replacing them, and changing the
> airfilter too ( duh why didn't I do that before???????).  One thing
> that's concerning me is that the idle isn't rock solid- it varies by
> 50-100rpm above the 800 mark. Vacuum leak somewhere perhaps?
>
> Suggestions on the above? I know it's a bit of an unusual set up
> engine, but what I'm looking for here is the general
> experienced-with-engines feedback that this list can be soooooo good
> at - and if there's someone out there who's got gobs of 50 degree
> VanagonI4 experience, I'd really appreciate your insight.
>
>
> thanks all
>
> BillM
> 82GLI4
> Vancouver BC
>

--
Jake
1984 Vanagon GL
1986 Westy Weekender "Dixie"
www.crescentbeachguitar.com
http://subyjake.googlepages.com/