Hey guys, I am putting this LT1 in my 69 Camaro and I know the brown w/white stripe wire goes to the Check Engine Light, but my book dosent show if it turns on the light by a positive voltage or a ground. Which is it?

Thanks,

Joe

 

What??? Brown/White...What??? The ECM uses a lamp driver to control the "check engine light", there is no single wire that controls it. Are you asking about the actual lamp circuit in the dash cluster? I think you is confused, brown w/white???