MAHLE RTI ESX-2 - Manual (Page 19)

Page 18
Continuous Injection System (CIS)
Cleaning Procedure
The following steps will circulate the cleaning mixture through the CIS fuel distributor cleaning the top
portion of the fuel distributor and pressure regulator.
1. Verify that the Continuous Injection System Setup section is complete.
2. Press and hold the Start button.
3. Connect red (positive) clamp on power cable to red (positive) terminal on vehicle battery. Connect
the black (negative) clamp to a ground on vehicle frame as far from the battery as possible. All LEDs
on keypad should illuminate for 1 second and buzzer should pulse. If not, check connections and
make sure REVERSE POLARITY LED is not illuminated. If REVERSE POLARITY LED is
illuminated reverse the battery connections.
4. Release the Start button and continue to turn ESX Pressure Control regulator clockwise until it is
completely closed. Make a note of the Fuel Pressure gauge reading. This is the true operating
pressure of the vehicle pressure regulator without vacuum assist when the engine is running at
normal operating temperature.
Caution: If a Leakdown test has not been performed, do not proceed with the following steps.
Refer to the Setup procedure for the correct instructions.
5. Press the + button to increase or the - button to decrease the time on the ESX LED timer display
until the 10 minute LED is illuminated.
6. After time has expired on the rail cleaning process press the START button until the pressure rises
again.
7. Press the + button to increase or the - button to decrease the time on the ESX LED timer display
until the 30 minute LED is illuminated. Run time may be adjusted depending on the condition of the
vehicle fuel system.
8. Start the vehicle to begin the engine cleaning procedure. At this time if the vehicle is equipped with
a Cold Start Injector you may use an Injector Pulser to energize the Cold Start Injector a few time
to clean it. When the cleaning process is halfway complete, step on the vehicle accelerator quickly
three to four times and the hold at 2000 RPM for 30 seconds.
9. Do not allow the CIS fuel system to run out of fuel. Turn off the vehicle engine before the time
expires on the ESX timer. When the time expires the unit will automatically shut off and purge itself
for five seconds. This will illuminate the PROCESS COMPLETE LED as well as sound the buzzer.
10. Turn the Pressure Regulator counterclockwise to open it and press and hold the FILL/PURGE button
for five seconds to relieve pressure in the ESX Red Hose.
11. Disconnect loop adapter and use a shop rag at all connection points before disconnecting.
12. Disconnect the battery leads, hoses, and adapters. Reconnect all of the vehicle fuel lines. Reinstall
the vehicle fuel cap.
13. Start the vehicle and verify that there are no leaks in the fuel system.
14. Always test drive the vehicle for three miles or run at 3000 rpm for two to three minutes to flush all
RTI FUEL SYSTEM CLEANER out of the vehicle fuel and exhaust system.