MotorVac CarbonClean System MCS 245 - Manual (Page 38)

Continuous Injection System (CIS) Cleaning Procedure
Follow the steps below to circulate the cleaning mixture through the CIS fuel distributor to
clean the
pressure regulator and the top portion of the fuel distributor.
1. Verify that CIS Setup Steps 1-18 above have been completed before continuing.
• At this point, refer to appropriate Intake System Cleaning Procedure section for proper intake
cleaning, and Vacuum gauge connections in the vehicle diagnostics chapter.
2. Refer to the vehicle's service manual for the manufacturer's recommended PSI.
3. Press and hold the Start button.
4.
Close the Pressure Adjust regulator clockwise until the Fuel Pressure gauge on the
unit displays the vehicles operating pressure and the Up Arrow LED stays illuminated
without flashing. This will clean the CIS system and filter the contaminants through
the unit’s filtering system.
5. Release the Start button and continue to turn the Pressure Adjust regulator
clockwise until it is completely closed.
• Make a note of the fuel pressure reading; this is the true opening pressure of the vehicle's pressure
regulator without vacuum assist when the engine is at normal operating temperature.
CAUTION:
Do not open or move sensor plate / air door on the
engine when the fuel distributor is pressurized. The CIS
system will spray fuel into the engine while it is not
running.
6. Press the ­ button to increases the time, or the ▬ button to decreases the time until
the Time LED displays 10 minutes.
7. After the 10 minutes has expired on the Time LED display, press the Start button
until the pressure rises to the previous system pressure, and release.