So My tac and MPG gauge has never worked, I took apart my cluster and checked the si board out.. battires are good.. I did the 1 thing no one should do and sprayed down my engine bay to clean it.. some how my tac poped to life, showing only little to nothing But be for it has never moved.. 5 min's later it was dead again... Could some one show/ or tell me where the sencer's are.. what may be bad or unpluged to cause this.. Please