Hey guys, I live in TN. I bought the car from a guy in MS its a 99 civic hatch with a b20z swap. I just went to get the emissions test done, I just moved up from MS so the emission thing is new to me. The check engine light is on never really bothered me motor runs fine and strong. Took it to get it tested and my obd port wouldn't register and they couldn't tell me what was causing the check engine light to come on. So there for I failed the test, I can register, title or tag the car till this is solved. What are somethings that I should look at as to why my obd port isn't working?

Here are a few pics of what the ecu looks like and the harness. Also there are only 5 wires going into the obd port pinout, is this my problem or is that right?

 

It looks like your car has been converted from obd2 to obd1. No way to pass
unless you go back to obd2

 

find a OBD2 LS ecu and plug it in direct without the conversion harness. the MIL light should go away and they should be able to communicate with the DLC connector.