Ecu Throwing A Code

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Senior Member
I have a 1st gen b16 in my 90 teg(I know i should have stayed with the b18.) But my problem is my ecu is throwing a code 2. So i did a search and it says its a secondary 02 Sensor, but im obd 0 so i dont have one. Is there another chart with codes for obd 0 cars? If not does anyone know what that code means. Thanks in advance for the help.


Senior Member
On a 1st gen 88-91 B16A, there are 2 O2 sensors. One leading and one trailing.

Both are located in the exhaust. You will need to add the 02 sensor and appropiate wire to the ECU to get the codes to clear.

Check for more info.


Both sites have the info you need.