MAHLE RTI ESX-2 - Manual (Page 25)

Page 24
Vehicle Diagnostics
Deadhead Test - PFI, TBI
DO NOT PERFORM THIS TEST ON THE CIS FUEL SYSTEM.
1. Verify that Steps 1-9 from the appropriate fuel system setup have been completed.
2. Verify that the engine is running and check all connections for leaks.
3. Bend the Loop adapter in half for one second to create a restriction in the pressure line
and then release it.
4. Observe the ESX Fuel Pressure gauge. This will give a good indication of the
maximum output capabilities of the pump.
5. Return to the appropriate Fuel System Cleaning procedure to continue the cleaning
process. Otherwise, continue with the steps below.
6. Turn off the vehicle.
7. Close the valve on the Tee adapter and use a shop rag at all connection points before
disconnecting. Disconnect the battery leads, hoses, and adapters. Reconnect all of the
vehicle fuel lines and replace the vehicle fuel cap.
Vacuum Pressure Test - PFI, TBI, CIS, and Carburetors
This test should be performed in conjunction with the cleaning process.
1. Verify that Steps 1-9 from the appropriate fuel system setup have been completed.
2. Verify that the engine is running and check all connections for leaks.
3. Attach the ESX Vacuum hose to any manifold vacuum source on the vehicle and leave
it in place throughout the cleaning process.
4. Make a note of the reading on the ESX Engine Vacuum gauge before and after the
cleaning process is completed on the vehicle.
Note: The vacuum gauge allows the operator to have a comparison point from before
the ESX cleaning service and after the ESX cleaning service without the use of
other diagnostic equipment. The operator should see a significant improvement
after the cleaning procedure is completed.