Help me with my Jetta

My 1994 Jetta III GL 2.0L has been running rich since the day I got it in
Novemebr 2004. Anyone have any ideas what to check? Thank you

CTS
02 sensor
FPR
DTCs
scan ECM

"trcakd916" > wrote in message
lkaboutautos.com...
> My 1994 Jetta III GL 2.0L has been running rich since the day I got it in
> Novemebr 2004. Anyone have any ideas what to check? Thank you
>

How do you know it's rich? Fault codes?

"trcakd916" > wrote in message
lkaboutautos.com...
> My 1994 Jetta III GL 2.0L has been running rich since the day I got it in
> Novemebr 2004. Anyone have any ideas what to check? Thank you
>

I BELIEVE it is running rich, my back bumper turns black, and my exhaust
pipe is black and it tends to look like it puffs a blck "smoke" out the
exhaust.

Normally there should be fault codes unless it's running not rich enough to
set a fault. Might be a lazy O2 sensor. But start looking at other tail
pipes for comparison. You maybe surprised what you see.



"trcakd916" > wrote in message
lkaboutautos.com...
>I BELIEVE it is running rich, my back bumper turns black, and my exhaust
> pipe is black and it tends to look like it puffs a blck "smoke" out the
> exhaust.
>

OK Where is my diagnostics center on my 94 jetta? I havent plugged it in
for any codes yet.

remove ashtray in the front and then slide the DTC connection cover panel
over into where the ashtray normally sits.
You should see an engine on that panel that hides the connection.

"trcakd916" > wrote in message
lkaboutautos.com...
> OK Where is my diagnostics center on my 94 jetta? I havent plugged it in
> for any codes yet.
>