[79bonanza]

ok cool, which sensors did you have the tuner turn off or do what the tuner guy does to make it run without them, and does the pcm throw codes when you swap a ls into a old truck if you have it tuned right, and what do you do with the check engine light, like where does it go and how do have one if you dont have the same gauge cluster. is it just a circuit the computer turns on when something doesnt work and it lights up the check engine light