It seems like no one else can answer my question, but i am gonna keep trying.... I have a b16a2 swap with a 97 gs-r harness on it. connected to the 93 ex chassis plugs, and I am using a P30 ECU. My problem is i have a high idle, and i get like 3 check engine lights. My theory is, that the wires are either going to the wrong pin location, or they don't exist on that ecu. Since I am using an OBD1 ECU, for a b16a, and I have a OBD2 harness, I am sure certain plugs are mismatched. Someone suggested getting the A plug from an OBD2 harness, or something like that. Any info is appreciated. Thanks

The ecu is jdm spec, someone said that might have something to do with the fact it runs crappy?
Andrew

 

reuse ur EX obd1 harness and add in a knock sensor everything should be fine

 

base on if ur car is a 93 civic ex

 

Will the engine plugs work on the 1999 Si motor (b16a2) ??? on the engine side...