hey everyone i just bought an 85 4runner with efi, the motor was completely blown so a buddy of mine had a wrecked 88 with good motor so i bought that and just finished putting it in, runs great have some check engine lights that i have to deal with but no biggy. i just went in today to talk to my buddys dad about getting it smogged and he is gonna do it for me but he said that legally he shouldn't because supposedly i was suppose to go through a referee,? :smack:to get my new engine evaluated so that i have all the components that the engine needs only for legal reasons. out of curiosity does anyone have experience with this because i don't know wether its really a big deal or not, should let it fly under the radar or should i get it checked out and have it 100% legal? anyone have advice. am im also having check engine lights that dont necessarily make sense. iv got codes 21, 13, 41,51 and 21 is o2 which i replaced and didnt change a thing