i had my harness grafted by lt1 wiring and its all hooked up with exeption of coolant temp but i do not have anythin spedo tach oil pressure or the gear selector in the cluster i dont know what happed if anyone could help me its much apriciated im half tempted to take the whole harness out and go throu it myself and the fact that i have extra connectors kind worries me i dont know where they go also he added another obd2 connector that is under the hood by the vcm insted of using the factory one