Re: AirFlow Sensor problems...

["Wayne Cressman" <WCressman@csi.com>]

>Or could my car be on the verge of exploding into a million
fiery peices like the Death Star?<

After looking back at the time and money I've spent on my 16v this year, I'd
go with that explanation!

Wayne C.


----- Original Message -----
From: <Vaughn8v@aol.com>
To: <scirocco-l@scirocco.org>
Sent: Saturday, September 18, 1999 8:03 PM
Subject: AirFlow Sensor problems...


>
> Hey,
>
>     So, I have an 88 16v 'Rocco that I bought in July.  Soon after I
bought
> it, it began to blow smoke out the tailpipe, like it was running too rich.
> When I attended the Seattle Cruise-out, it blew smoke a little more than
it
> had before.  Someone there did the no-no of adjusting the allen screw that
> adjusts the Co level and mixture, the one that raises and lowers the
sensor
> plate that is located between the fuel distributor and the sensor plate.
> Well, he got my car to have better throttle response and actually run a
> little bit better and almost completely cease blowing smoke, but would not
> idle.  I figured that before too long I would just take it to a shop and
have
> it adjusted properly.  I realize that by adjusting that screw you are
messing
> with something that has to be adjusted precisely and cannot be done so
> without proper diagnostic equipment such as a scope.  This guy proceeded
to
> tell me that he suspected that I had some bad injectors.
>
>     Anyway, after a couple of weeks of neglecting that trip to the shop,
my
> car began to sputter, and would periodically cough, and sometimes even
> backfire.  Also, the fuel pump relay would start chattering unceasingly
> everytime I would drive my car, except for when I was at a stop...  in
other
> words the relay would not chatter when I would be at a standstill and rev
the
> engine.  Then my car started to just up and die every couple of miles, and
> then would not start after a while at all.  So, to get it to run,  the
first
> thing that I did was remove the injectors to have them cleaned.  So,
> according to the dealership who hooked each injector up to that nifty
little
> Bosch injector cleaning contraption and squirted solvent through them...
they
> cleaned and checked out fine.  So I purchased new o-rings for them and
just
> for the hell of it, bought a relay too.  (BTW, after the o-rings are on
the
> injectors and they are installed back on the fuel lines, getting them to
go
> back into thier bakelite seats properly without that lower o-ring slipping
> off is a BITCH!!!)  But after a little while and a little silicone, they
> popped in there properly.
>
>     When I tried to start it up however, it just cranked and cranked.  So
I
> took a long allen wrench and, since it had already been screwed with, I
> adjusted that mixture screw so I could get it running good enough to drive
it
> to the shop and have it corrected properly.  I got it to start and run,
and
> it seemed to have good throttle response, but when I tried to drive it
around
> the block, it would do the same coughing a sputtering  and lurching thing
> that it was doing before.  Could anything in the sensor plate assembly be
> damaged?  Could there be a control plunger problem?  Or do I just need to
> keep trying to adjust it?  Or could even my plugs be fouled enough (and I
am
> sure they are fouled after running so rich so long) that they just aren't
> firing properly?  Or could my car be on the verge of exploding into a
million
> fiery peices like the Death Star?
>
> Any suggestions?
>
> Thanks!
>
> Ben
> 88 16v Scirocco
>
> --
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>


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