TIAGO TIGOR CNG - SERVICE MANUAL

1.2L REVOTRON Bi FUEL CNG ENGINE 99 16. Remove the coolant hoses from the engine and heater core. 17. Remove the radiator hoses. 18. Disconnect and remove vacuum hose connected between brake booster to vacuum pump. 19. Disconnect the fuel supply connection to Engine by relieving the fuel pressure. 20. Disconnect the supply connection to CNG fuel rail. 21. Remove canister connections from canister purge valve mounted on intake manifold.