Once again I failed to proof read my writing. The Vanagon like most VW's of
this era do NOT have EGR systems.

Dennis

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
James
Sent: Tuesday, March 4, 2014 11:30 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: Oil pressure warnings, WAS: Mann Oil Filter and lifters

Dennis, do you mean that most VWs do, or don't have EGR?  I was under the
impression that VWs generally don't have EGR (at least, the three gasoline
VWs I've owned were EGR-free).

James Eaton
Ottawa, ON

> Date: Mon, 3 Mar 2014 00:16:03 -0500
> From: d23haynes57@HOTMAIL.COM
> Subject: Re: Oil pressure warnings, WAS: Mann Oil Filter and lifters
> To: vanagon@GERRY.VANAGON.COM
>
> Again the OBDII systems test many of the systems. They know if a
> catalytic converter goes bad or even if there is a cylinder misfire.
> Even if the miss fire is due a to a bad injector, vacuum leak, or an
> engine problem, the system will know.
> While hydrocarbons from leaky vapor recovery systems are a common
> failure the NOx reduction is an extremely important part of smog
> control. This is why the dyno tests were needed as an engine has to be
> loaded to produce the NOx in order to test the reduction controls.
> Many cars use exhaust gas recirculation as a control. Most VWs
> including the vanagon do have EGR  so they must rely on the engine
> producing less and the 3-way catalyst taking care of what is produced.
>
> Dennis
>
>
> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On
> Behalf Of James
> Sent: Sunday, March 2, 2014 11:34 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Re: Oil pressure warnings, WAS: Mann Oil Filter and lifters
>
> Actually, they're trying to 'save us money' - the new test, that won't
> work if the 'idiot light' is on,  only involves using the OBDII port -
> no tail pipe sniffer at all!  It is thus  $20 cheaper than the old
> test (which those of us who have vehicles like our '91 Vanagon still
> have to do, as there's no OBDII to plug into).  I just had the 2003
> Matrix in for it's test last week, and was filled in by our local
> mechanic on all the ins and outs of the new test.  Supposedly the
> leading cause for the check engine light to be on here is a failure of
> the evaporative emissions control system, and it's those stray
> hydrocarbons that they're most worried about - makes sense, carbon
> monoxide isn't nearly as serious a pollutant as the various aromatic
hydrocarbons in gasoline are.
>
> James
> Ottawa, ON