Hey Mike Vee, I will have to look at the computer code tomorrow afternoon. I'm not too sure where it is located. Probably on the passengers side under the dash. I'll try to get the code from it. Don't know what the codes mean. Its 8:40 pm right now. The truck I'm putting the engine in is an 87 Chevy 1/2 Ton 4x4 with a TBI 350. It has the letter K as the engine code. Its a non California truck thank God. Its in super nice condition. Henry