MAHLE RTI ESX-2 - Manual (Page 9)

Page 8
Port Fuel Injection (PFI) Setup
7. Attach the Tee adapter to both pressure line adapters, the valve should be in the closed
position. Then connect the ESX Red Hose to the valve on the Tee adapter as shown in the
previous illustration.
8. Attach Loop adapter to both return side adapters as shown in the previous illustration. Note
that the ESX Black Hose is not used at this time.
9. Start the vehicle, turn the Tee adapter valve counterclockwise to open it. Check for leaks.
Watch the Fuel Pressure gauge on the ESX control panel. A drop in pressure could
indicate a leak.
CAUTION - CAUTION - CAUTION
-DIAGNOSTICS-
The fuel system is now ready to perform diagnostic tests. The Leakdown Test has to be
performed prior to the pre-cleaning procedure to eliminate the possibility of a leaky
injector. If an injector is leaking and the operator continues without testing, a cylinder
may fill with gasoline and cause serious engine damage or possible engine failure. For
instructions on how to perform all of the diagnostic tests, refer to the Vehicle
Diagnostic section (see Page 23 ). Once completed, continue with Step 10 below.
10. Press and hold the Fill/Purge button on the Keypad until the Fuel Level window
indicates an increase of 1/4 in the ESX fuel tank.
If the vehicle stalls, turn the valve on
the Tee adapter 1/8 turn clockwise. Restart the vehicle and slowly open the valve, by
turning counterclockwise, until the engine starts to stutter. Ease the valve back until the
engine smooths and continue filling. If the vehicle repeatedly stalls repeat this step until
ESX fuel tank is 1/4 full.
11. Turn OFF the vehicle.
12. Add 8 oz. of RTI FUEL SYSTEM CLEANER, through the ESX fill port for every 1/4
added to the ESX fuel tank.
13. Press and hold the Fill/Purge button for five seconds to relieve the pressure in the ESX
Red Hose.
CAUTION: Flammable liquid can squirt out of pressurized fuel lines when connecting
or disconnecting. Always wear eye protection. Obtain zero pressure before
connecting or disconnecting any fuel lines or adapters. Always wear
chemical resistant gloves when connecting or disconnecting fuel lines.
Wrap a shop rag around the pressure point when connecting or
disconnecting. Avoid exposure to flames, sparks, hot engine parts, and/or
ignition sources. By not following the above cautionary steps the operator
will be subjecting himself to serious injury or possible death.