Examination
1. Open the hood.
2. Disconnect the negative battery terminal.
3. Remove the relay and fuse box from their mounting on the junction box and move them aside for access.
4. Before May 2004: Loosen the nut securing the fuel pressure sensor to the mudguard.
5. Wipe the fuel pressure sensor.
6. Lay out rags to collect spilled fuel.
7. Disconnect the fuel line from the pressure sensor.
8. Assemble the LRT-19-004A as shown in the figure.
NOTE: The basic pressure test kit was part number LRT-19-004. An additional tool kit, LRT-19-004X, was available to accommodate changes to the engine design. A completely updated fuel pressure test kit is now available as LRT-19-004A.
9. Connect the LRT-19-004A tool to the pressure sensor and to the fuel line.
10. Connect the negative battery terminal.
11. Insert the key into the ignition switch and turn it to position II.
12. Keeping the key in position II, record the pressure gauge readings. If the fuel pressure is below the permissible value (2.5 ±0.1 bar, at a voltage of 11.5 ±0.1 V, at a temperature of 20°C ±5°C), replace the booster pump.
13. Turn off the ignition and remove the key from the lock.
14. Disconnect the negative battery terminal.
15. Lay out a rag to collect any leaking fuel.
16. When the pressure gauge needle reaches zero on the scale, you can disconnect the device from the fuel pump.
17. Connect the fuel line to the pressure sensor.
18. Before May 2004: Attach the fuel pressure sensor mounting nut to the mudguard.
19. Install the relay and fuse box onto the bracket located on the mounting box.
20. Connect the negative battery terminal.
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