Its located in one of three places. 1). Under the dash visible as a single three or four holed plug. 2). Under the hood around the battery area. 3). On the firewall under the hood.
earlier tan 1996 the plug will be located under the hood
it is obd1 syatem and will need specific scanner or an adaptor to plug later scanner in
Quad-Drive module or QUAD-DRIVE No.1 error
diagnostic plug for 1993 mustang lx where is it
Replace ignition switch for 1993 buick century?
Passenger side fender near strut tower
where is the timing chain on a 1993 buick century 3.3
Center of the steering wheel.
Britain
The spark plug gap for a 1993 Buick Century is: .045 for the 4 cyl 2.2 engine .060 for the V6 3.3 engine
On this OBD1 vehicle the engine diagnostic connector is under the hood along the driver side inner fender (square and black). There is also a body/trans/abs diag connector under the dash (rectangle and blue).
Should be under the hood, under a black plastic cover
2.2 ltr four cylinder
It hasn't got a dedicated fuse.