MotorVac CarbonClean Dual System MCS 352 - Manual (Page 24)

Port Fuel Injection (PFI) Setup Procedure
WARNING: BEFORE BEGINNING THE RAIL FLUSH PROCEDURE IT IS
IMPORTANT TO TEST THE VEHICLE FOR INJECTOR LEAKDOWN. IF AN
INJECTOR IS STUCK OPEN IT IS POSSIBLE TO DAMAGE THE ENGINE DUE
TO ‘HYDROLOCK”. (LIQUID FILLING THE CYLINDER). IF THE VEHICLE
HAS INJECTOR LEAKAGE DO NOT DO THE RAIL FLUSH, PROCEDE
DIRECTLY TO THE ENGINE RUNNING-CLEANING PROCESS.
Follow the steps below to connect the unit to the vehicle's fuel system. Make sure the
vehicle has at least 1/8 tank of fuel before beginning this process.
1. Start the vehicle and allow the engine to reach normal operating temperature .
IMPORTANT
Do not perform the setup or cleaning process if the
vehicle’s engine oil or coolant level is low.
If necessary, add oil and/or coolant to the vehicle.
2. Turn the vehicle OFF when normal operating temperature has been reached.
3. Turn the Gasoline (Petrol) PRESSURE REGULATOR counterclockwise until the regulator is
completely open. Verify that the ON/OFF switch is turned off.
4. Attach the unit to the vehicle's battery by connecting the red battery clip to the positive ( + )
battery terminal and the black battery clip to a solid ground point as far from the battery as
possible. Press the SERVICE SELECTOR switch to the side with Gasoline (Petrol) FUEL
SYSTEM SERVICE.
5. Remove the vehicle's gas cap to relieve fuel tank pressure.
6. Disconnect the fuel lines from the fuel rail. There are now four open ends to work with:
Pressure
Line
Return
Line
From the
fuel
tank
to the
fuel
rail.
From the
fuel
rail to
the
fuel
tank.
7 Add a pre-mixed gasoline and detergent mixture to the right side (gasoline /petrol) reservoir.
When filling the reservoir, add 1 oz. (30 ml.) of Detergent to 3 oz. (90 ml.) gasoline per
cylinder. See page 3-3 for alternate filling method (Refer to page 3-2 for the proper ratios.)