where is the diagnostic port?

[Carlo]

I have a 1990 cq and was wandering where the diagnostic port is.  I want
flash the fault codes and can't find the port.  Just fixed all the leaks in
the tb boot and breather tube.  Replaced the ISV and still stalls.  When I
unplug the ISV when warm the car dies so I have not been able to set the
idle.  What's next O2?  Help before the SO say's begone.  She has to drive
the SS tonight.  Hope she can figiure out how to drive an auto. ;o)


Carlo
Scandinavia Wi
1990 CQ Bad Dog
1996 Impala SS Fast in Black