I have an odb2a non vtec harness. I have put a b16a2 from an obd2b car. i have stripped the obd2b harness off the motor and attempting to wire up the obd2a harness. I have the ecu print out that shows me where the vtec solenoid,Seconday O2, and primary O2 goes. and the Vtec pressure switch. Now I am confused. the vtec pressure switch on the block has 3 wires what happens to the other 2. With the vtec solenoid is it just as simple as putting the pin in the ecu plug and running a wire in the loom to the connector. Any help would be great. pics of fix's would be really helpful. Thanks.