Re: Warm-regulator HELP!

[Huw Powell <human@nh.ultranet.com>]

> I thought awhile back I fixed my rich fuel mixture problem when I 
> replaced the injectors and seals, but no joy, it still exists. 
> he said fuel pressure and CO checks out OK, but to go ahead and replace
> the warm-up regulator. I'm still not clear on how the regulator works. 

A '90 200 has one???  I thought they did away with them in 84 and went
electronic.  Anyway, what the WUR's I'm familiar with do is use fuel as
a hydraulic fluid to control the fuel pressure (hence "control pressure
regulator").  When cold it make the mixture rich.  When warm it doesn't
mess with it - AFAIK.  In other words, the WUR is only implicated in
cold running problems... But your system may be far removed from what
I'm used to.  Hope I've helped more than I've muddied...

-- 
Huw Powell

http://www.thebook.com/human-speakers

If you want to work the street alone,
I'll disappear for you...
I'm your man.         (Leonard Cohen)