Horrible running 8v

[scourge at cogeco.ca (Scourge)]

Hey, welcome to the list!
My guess would be that the car is running too lean. So when you unplug the
O2 sensor, the car defaults and runs super rich(in your case that's just
enough fuel for it to run properly).
The fix *should* be an easy one.
Run the car long enough to get it up to a normal operating temp. Then check
out your throttle body, there's a little switch on the top that will be
actuated when the throttle is fully open.......Push It(hahah name the
movie!!). If the idle improves there is a good chance the rest of this will
help. On your fuel distributor(big thing on the drivers side with the
airboot and fuel lines) in between the intake boot and the fuel lines, there
is a small hole* just grab a LONG 3mm allen key and stick it in. Turn it
clockwise and it will richen the mixture(more fuel) counter clockwise will
lean it out(less fuel). With the car idling play around with it a bit. You
shouldn't need to turn it more then a half or three quarter turn. Once you
get the car to idle a bit better play around with that and the idle
screw(back of the throttle body, 7mm socket or wrench) to get a good
balance.
After all of this, if you notice bad fuel mileage, lean it out a bit. If the
oil temp increases significantly richen it a bit, you're too lean.
I recommend having a shop with a sniffer tune the car at some point so you
have a base line to go from. Playing with it in your driveway is kind of
trial and error.
*if there is no hole, there will be a small plug you may have to drill out,
mine have all had the hole by the time I got them

Good Luck and HTH
    -George
Check it out I answered a tech question!!!!!! Now pat me on the back and
tell me what I screwed up. lol


----- Original Message ----- 
From: "Jason Peters" <nefarious@drumatix.net>
To: <scirocco-l@scirocco.org>
Sent: Thursday, August 26, 2004 8:53 PM
Subject: Horrible running 8v


> Hello everybody,
>
>   I'm pretty new to the 'rocco list so excuse me if this is an easy
> question/fix.  First a little background:
> '83 'rocco
> 8v on CIS
>
> Okay, so the PO disconnected the O2 sensor because the car wouldn't run
> properly with it connected.  So I assumed it was a bad O2 sensor.  I know
I
> should never assume anything with these cars and I should have guessed
that
> a faulty O2 sensor would be too easy.  Anyway, I replaced the O2 sensor
with
> a nice new one, connected it and fired it up.  Seemed to run fine for the
> first few minutes(maybe till the sensor warmed up) after that the idle
> started to hunt around up and down.  Backed out of the drive way and the
car
> would barely go.  It sputtered and stumbled almost to the point of
stalling.
> Nursed it back to the driveway, unplugged the sensore and it started
running
> fine again although the idle does seem high (1100rpms).  I'm a complete
CIS
> noobie so any and all help is appreciated.
>
> Thanks,
> Jason
>
>
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