Acceleration off idle

[amalventano1@home.com (Allyn)]

Better check your compression. Sounds like how rocco #1 acted before the rings went ... 1000 miles
from home.
Al

----- Original Message -----
From: "Chris DeLong" <green536@hotmail.com>
To: <treed2@u.washington.edu>; <scirocco-l@scirocco.org>
Sent: Sunday, February 03, 2002 9:36 PM
Subject: Re: Acceleration off idle


> I would not suspect your air flow sensor plate. I would suspect the coolant
> temp sensor on the back of the head. Check it with an Ohm meter for correct
> resistance values.
>
>
> >Lately my roc's performance has taken a turn for the worse.. at least in
> >the low rpm department. When I start it up, it always takes a few jabs of
> >the starter to get it going, then it just sits around 900 rpm (the idle
> >isn't "smooth", but the rpm is relatively constant). When I step on the
> >gas it spudders ands drops to 400 or 500 rpm before bouncing back up to 1k.
> >
> >Basically, the only way I can get it to rev 'up' instead of 'down' is by
> >tapping the gas with my foot four or five times until it bounces up to
> >1300 rpm or so where I coax it up above 1600 rpm.. Above 1600 the car is
> >good as gold.. no complaints whatsoever..
> >
> >This problem is more pronounced when its cold (and always has been) but
> >lately even with the water temp above the 1/2 way mark it is still
> >present. This makes it a real pain to stop at intersections and stop
> >signs. If I don't want to drop the clutch at 1600 rpm and rocket out of
> >the intersection, I have to feather it up from idle until I have enough
> >power to get moving. It usually takes at least 5 seconds to start
> >accelerating above 5 mph - by then traffic behind me is pissed..
> >
> >So.. the car is an '87 16v with euro intake cam, new plug wires, bosch
> >plugs, new distributor+cap+rotor, relatively new o2 sensor, new clutch,
> >fuel enrichment module (which i tried removing), new battery wiring,
> >new thermo-time switch, and new fuel+air filters.
> >
> >I've checked crank to cam timing and it's dead on, and I recently set the
> >ignition timing.
> >
> >Any thoughts on what the problem could be?
> >
> >I'm going to take a look at the air flow sensor plate.. I'm thinking it
> >could be staying 'bottomed out' until a certain vacuum is achieved (ie.
> >around 1600 rpm) then breaking loose and moving freely. I'll try cleaning
> >and lubing the pivot point(s).
> >
> >Thanks for any suggestions..
> >
> >-Toby
> >
> >--
> >'87 16v
> >
> >
> >
> >_______________________________________________
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>
>
>
>
> Chris DeLong
> ICQ#45030867
> Seattle, WA USA
> '80 16V 'Rocco ragtop
> '91 GLi 2.0 16V
> '77 Rabbit 16V
> '80 'Vert (parting out!)
> '61 17 Window type II
> '91 Vanagon
> '78 Rabbit
> '84 Jetta
>
>
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