OPERATION MANUAL ESX-2 Fuel System Cleaner RTI Technologies, Inc 4075 East Market St. York, PA 17402 800-468-2321 www.rtitech.
Table of Contents Component Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Keypad Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Fuel System Identification . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Port Fuel Injection (PFI) Setup . . . . . . . . . . . . . . . . . . . . . . . 7 Port Fuel Injection (PFI) Cleaning Procedure . . . . . . . . . . .
Component Descriptions Unpack all components. Use laminated placard to verify fitting adapter quantities. Items not shown are one RTI filter as well as 1 case (twelve bottles) of RTI FUEL SYSTEM CLEANER. Unpack RTI FUEL SYSTEM CLEANER and RTI filter. Store contents in the rear storage compartments of the ESX. (see Page 28) Contact RTI if any items are missing or damaged.
Safety Precautions WARNING: Failure to follow these precautions can result in serious injury or death. • Read and understand the Operation Manual completely before operating this unit. • Always wear proper eye and skin protection when operating and maintaining this equipment. • Take precautions to keep clothing, hair, hands, hoses, etc. away from all moving parts of the vehicle.
Keypad Functions The ESX is an automatic fuel system cleaning machine that has state-of-the-art controls. Operation of this machine is intuitive and easy to master. Below is a list of the keypad functions. 60 5 55 50 10 45 15 40 20 35 25 30 Fills tank inside the ESX unit from the vehicle fuel system. Also used to purge or relieve the pressure in the pressure line in the fuel system before disconnecting. Stops any procedure the moment it is pushed.
Keypad Functions Illuminates whenever there is an error with the selected procedure. Illuminates when the selected process is complete. The buzzer will sound continuously when this is illuminated. Illuminates when the ESX is pumping out of the red line. Examples of this are the cleaning procedure and when emptying the internal tank. Illuminates when the ESX is pulling from the red line. Examples of this are the purging procedure and when filling from the vehicle fuel system.
Fuel System Identification The Fuel System type must be determined before proceeding with any cleaning or diagnostic procedures. The following four systems are the only types that can be serviced with the RTI ESX unit. Port Fuel Injection (PFI)- This system uses a single electronic injector per cylinder, mounted such that fuel spray is directed into the intake port. (See Page 7) Throttle Body Injection (TBI) - Centrally mounted, like the carburetor system, but utilizes one or two electronic injectors.
Port Fuel Injection (PFI) Setup The following steps will prepare the ESX for the cleaning procedure. Make sure the vehicle fuel gauge reads at least 1/8th of a tank before continuing. Note: Do not proceed with this setup or any cleaning procedure if the engine oil or coolant level is low. If necessary add appropriate amount of coolant and/or oil to the engine. Note: If Intake System Cleaning is desired refer to page 26 for proper instructions. 1.
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.
Port Fuel Injection (PFI) Setup 14. Carefully disconnect the Loop adapter from the return lines. Close the valve on the Tee adapter and carefully disconnect the Tee adapter from the ESX Red Hose and the pressure lines. 15. Connect one end of the Loop adapter to the pressure line coming from the vehicle fuel tank. Connect the other end of the loop adapter to the return line going back to the fuel tank. This forms a loop making it unnecessary to disconnect the fuel pump.
Port Fuel Injection (PFI) Cleaning Procedure The following steps will circulate the cleaning mixture through the Port Fuel Injection System, cleaning the fuel rail, injector screens and pressure regulator. 1. Verify that the Port Fuel Injection Setup section is complete. 2. Press and hold the Start button. 3. Turn the ESX Pressure Control regulator clockwise until the Fuel Pressure Gauge displays at least 4 psi or the Cleaning Arrow LED stays illuminated.
Throttle Body Injection (TBI) Setup The following steps will prepare the ESX for the cleaning procedure. Make sure the vehicle fuel gauge reads at least 1/8th of a tank before continuing. Note: Do not proceed with this setup or any cleaning procedure if the engine oil or coolant level is low. If necessary add appropriate amount of coolant and/or oil to the engine. Note: If Intake System Cleaning is desired refer to page 26 for proper instructions. 1.
Throttle Body Injection (TBI) 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.
Throttle Body Injection (TBI) Setup 14. Carefully disconnect the Loop adapter from the return lines. Close the valve on the Tee adapter and carefully disconnect the Tee adapter from the ESX Red Hose and the pressure lines. 15. Connect one end of the Loop adapter to the pressure line coming from the vehicle fuel tank. Connect the other end of the loop adapter to the return line going back to the fuel tank. This forms a loop making it unnecessary to disconnect the fuel pump.
Throttle Body Injection (TBI) Cleaning Procedure The following steps will circulate the cleaning mixture through the Throttle Body Injection System cleaning the throttle body, injector screens and pressure regulator. 1. Verify that the Throttle Body Injection Setup section is complete. 2. Press and hold the Start button. 3. Turn the ESX Pressure Control regulator clockwise until the Fuel Pressure Gauge displays at least 4 psi or the Cleaning Arrow LED stays illuminated.
Continuous Injection System (CIS) Setup The following steps will prepare the ESX for the cleaning procedure. Make sure the vehicle fuel gauge reads at least an 1/8 of a tank before continuing. Note: Do not proceed with this setup or any cleaning procedure if the engine oil or coolant level is low. If necessary add appropriate amount of coolant and/or oil to the engine. Note: If Intake System Cleaning is desired refer to page 26 for proper instructions. 1.
Continuous Injection System (CIS) 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.
Continuous Injection System (CIS) Setup 14. Carefully disconnect the Loop adapter from the return lines. Close the valve on the Tee adapter and carefully disconnect the Tee adapter from the ESX Red Hose and the pressure lines. 15. Connect one end of the Loop adapter to the pressure line coming from the vehicle fuel tank. Connect the other end of the loop adapter to the return line going back to the fuel tank. This forms a loop making it unnecessary to disconnect the fuel pump.
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.
Carburetor System Setup The following steps will prepare the ESX for the cleaning procedure. Make sure the vehicle fuel gauge reads at least an 1/8 of a tank before continuing. Note: Do not proceed with this setup or any cleaning procedure if the engine oil or coolant level is low. If necessary add appropriate amount of coolant and/or oil to the engine. Note: If Intake System Cleaning is desired refer to page 26 for proper instructions. 1.
Carburetor System Setup 7. Attach the Tee adapter to adapters. Then connect the ESX Red Hose to the valve on the Tee adapter as shown in the previous illustration. 8. 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. If there are no leaks, note the fuel gauge pressure at this time.
Carburetor System Setup 15. Disconnect the female end of the Tee adapter from the carburetor and connect it to itself at the Tee adapter valve. This stops the flow of fuel from the vehicle to the carburetor during the cleaning process. This connection is shown in the illustration below. ESX RED HOSE LOOP ADAPTER GOING INTO THE CARBURETOR SUPPLY LINE CARBURETOR COMING FROM FUEL PUMP ADAPTER VEHICLE FUEL TANK FUEL PUMP 16. Connect the ESX Red hose to the adapter going into the carburetor.
Carburetor System Cleaning Procedure The following steps will circulate the cleaning mixture through the carburetor. 1. Verify that the Carburetor Fuel System Setup section is complete. 2. Press and hold the Start button. 3. Slowly turn the ESX Pressure Control regulator clockwise until the Cleaning Arrow LED stays illuminated or the Fuel Pressure Gauge displays at least 4 psi. The pressure may have to be increased to the pressure previously noted in step 9 of the Carburetor Fuel System Setup. 4.
Vehicle Diagnostics Fuel System Pressure Test - PFI, TBI, CIS, and Carburetors 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. Make a note of the fuel pressure reading from the ESX Fuel Pressure gauge. This is the vehicle running pressure. If the pressure is erratic or the vehicle is slow to reach maximum pressure, the vehicle fuel filter may be clogged or its fuel pump may be weak. 4.
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.
Vehicle Diagnostics Leakdown Test - PFI, TBI, CIS 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. Turn off the vehicle. 4. Note the pressure reading on the ESX Fuel Pressure gauge. The pressure should stay the same or increase marginally due to heat expansion (refer to the manufacturer’s specifications for a CIS system, the pressure may initially drop).
Intake System Cleaning Caution: Take extreme care when performing this process. Failure to follow the precautions and instructions may result in engine failure. Always wear proper eye and skin protection when operating and maintaining this equipment. 1. Verify that ESX tank level is at least at the 1/4 full mark and that there are 8 oz of RTI FUEL SYSTEM CLEANER to every 1/4 tank. 2. Connect red (positive) clamp on power cable to red (positive) terminal on vehicle battery.
MAINTENANCE The ESX will provide many years of reliable service if properly maintained. The following checklist will ensure that the ESX will run at peak efficiency and present an image to your customers that your shop performs high tech fuel system cleaning services. 1. Use tool tray for storage of tools and adapters only. 2. Keep the exterior surface clean. Use a mild all purpose cleaner to wipe fuel and dirt off the cabinet. 3.
PARTS IDENTIFICATION Part No.
FLOW & WIRING DIAGRAM Page 29
