90 Jetta Idle problem on startup / 98 Jetta ignition key question

if its a flat metal key, go get it copied, as far i've seen only 99.5 (
Jetta 4 ) are the chip keys.
mines a 97 jetta gl and ive made keys at the local hardware store

-Lee

"Les" > wrote in message ...
>I recently got a 1990 Jetta Carat, very nice car.
> I't does the same thing my 87 GL used to. Shortly
> after starting the car, (1.8 8v) within a minute,
> the idle begins a cycle of almost quitting, and then
> revving up to about 2000. I have to give it a little
> gas at the bottom of the cycle to prevent quitting.
>
> I start driving and the problem is gone in another
> minute. If I remember right it gets a bit worse in
> cold weather. I remember something about the O2 sensor.
> Disconnecting it may make the problem go away... perhaps
> it may be the O2 sensor. These cars are/were manual transmission.
>
>
> The other question is about our 98 Jetta GL, auto trans.
> We want a third copy of our ignition key for the daughter,
> and I wonder if this is a "chipped" key, and if using a
> copy from the hardware store would hurt the car.
>
> Thanks,
> Les
>
> 2 Jetta family, may become 3 next year.
>

I recently got a 1990 Jetta Carat, very nice car.
I't does the same thing my 87 GL used to. Shortly
after starting the car, (1.8 8v) within a minute,
the idle begins a cycle of almost quitting, and then
revving up to about 2000. I have to give it a little
gas at the bottom of the cycle to prevent quitting.

I start driving and the problem is gone in another
minute. If I remember right it gets a bit worse in
cold weather. I remember something about the O2 sensor.
Disconnecting it may make the problem go away... perhaps
it may be the O2 sensor. These cars are/were manual transmission.


The other question is about our 98 Jetta GL, auto trans.
We want a third copy of our ignition key for the daughter,
and I wonder if this is a "chipped" key, and if using a
copy from the hardware store would hurt the car.

Thanks,
Les

2 Jetta family, may become 3 next year.

The key ends in a rounded hunk of plastic like many car keys.
Unlike my ex's 99 Ford key it doesn't have a little removable
part though.

Les

Lee wrote:
> if its a flat metal key, go get it copied, as far i've seen only 99.5 (
> Jetta 4 ) are the chip keys.
> mines a 97 jetta gl and ive made keys at the local hardware store
>
> -Lee