Where's the location of the of the system diagnostics port or whatever it's called on a 1992 Honda Civic so I can hook up my scan tool, I can't seem to find the connector or I am just completely missing it. Thanks a head of time.

 

Right next to the blue two pin cel check plug near the ecu under the glovebox. The one you want is the 3 pin blue plug.

 

Thanks for the quick reply, much appreciated.

 

Just use a paper clip and jump it on the blue clip, and count the numbers of check engine.