I have a supercharged 1990 buick Reatta. The engine has been modified. Ported & polished heads, supercharger, intake manifold,& throttle body. Supercharged rods and pistons and a GN crankshaft. My problem is the check engine come on whenever it pleases. I know that it is caused by the air temp sender. I have tried to move it nearer the throttle body and also farther away, but it still comes on whenever it pleases. Can anyone tell me a cure? Jon...