97 motor installed in a 95 delsol vtech single cam old harness non vtech but converted. also 97 ob2 motor had evap selonoid on intake do i run this or by pass.
i no that the iac is working but still idle eraticle. do or can i reinstall old intake from 95 delsol motor when 97 has vtec

just learning thanks

 

sounds like a vaccum problem.
check all vaccum hoses n stuff. especually from the brake booster.