I HAVE A SWAPPED B16A2 MOTOR IN MY 96 HONDA CIVIC EX. THE PROBLEM IM RUNNING THROUGH IS THE CHECK ENGINE LIGHT STAYS ON ALL THE TIME. THE RPM OR SPEEDOMETER DOESNT WORK. NOW THE ECU IS A P2T Z4 WHICH IS OFF OF A 99 CIVIC SI AND ONLY TWO PLUGS WENT INTO THE ECU. NOW I JUST RECENTLY WENT TO THE STATE REFEREE TO GET MY CAR CHECKED. THEY SAID I NEEDED A P30 ECU FROM A 96 HONDA DEL SOL, INSTEAD I ENDED UP GETTING A 97 DEL SOL P30A2 ECU. THE P30 ECU ONLY TOOK ONE PLUG FROM MY ENGINE HARNESS. IM CONFUSED AND DONT KNOW WHATS GOING ON CAN I GET A LITTLE HELP ON WHAT MIGHT BE WRONG??

 

You need a obd2a-obd2b ecu jumper harness.

Also, stop yelling

 

lol