i put a jdm h22 into a 90 accord 4dr ex. it runs and everything and the motor is in. but i was just wondering what i need to hookup extra that the accord harness doesnt have. we hooked up knock sensor, vtec solenoid, vtec pressure positive and ground, egr, and the only thing i can think of that isnt hooked up is the purge solenoid, the 2nd intake, and the 2nd map. the 2nd map doesnt need to be hooked up, the 2nd intake either they said. but the CEL is on, and i dont know what codes its throwin, how do i check on an accord? any help will be appreciated