I put in an ls(b18b) into my eg and it was giving me codes, iac censor,tps sensor, iat sensor, i fixed them all, then i get an ecu code its solid yellow how can that be??? the ecu was in my friends car a few weeks ago running fine. Any ideas i will appriciate it extremely. BTW everything was converted to 0bd1

 

Are you sure you are getting code 0? If you have NO codes, it will keep the CEL on when you pull codes, however, if you really do have a code 0 it will be off when you first turn the car on, then go solid after a couple seconds, if it is solid from the moment you turn the key on, you don't have any codes 99% of the time if you have a real code 0, your car will be in limp mode

 

im positive ther CEL is on after a few seconds when i turn the key and it is solid what do you mean by limp mode????