Aeromotive 14132 - 03-07 MITSUBISHI EVO FUEL RAIL KIT - Manual (Page 2)

The following steps are typical of most installations:
1. Once the engine has been allowed to cool, disconnect the negative battery cable and relieve fuel
system pressure, referring to the appropriate vehicle service manual for the procedure on doing so.
2. Check for any dirt or debris around the fuel injectors. If any is evident, wash it off with some solvent
parts cleaner or wipe it off with a clean shop towel.
3. Disconnect the electrical connector at each fuel injector, making note of the location of each.
4. Disconnect the supply fuel line from the OEM fuel rail. Place clean shop towels around the open fuel
lines to catch any gasoline that may drip out and to prevent any dirt from entering the fuel lines.
5. Disconnect the OEM fuel pressure regulator from the OEM fuel rail. Place clean shop towels around
the open fuel lines to catch any gasoline that may drip out and to prevent any dirt from entering the
fuel lines.
6. Remove the 2 mounting bolts that attach the fuel rail to the intake.
7. Place clean shop towels around the injectors to catch any gasoline that may be spilled during their
removal. Remove the injectors from the manifold by gently pulling upward on the fuel rail / injector
assembly. Keep all injectors connected to the fuel rail. If an injector does pull out of the fuel rail, it
may spill a large amount of fuel.
8. Carefully remove the fuel injectors from the OEM fuel rail.
9. Remove the old o-rings from the fuel injectors, inspect the injectors for any dirt or debris and clean if
needed. It is suggested that the old o-rings be replaced, contact your local parts store.
10. Coat the new fuel injector o-rings with a light oil to ease installation.
11. Carefully install the new fuel injector o-rings on the injectors.
12. Install the appropriate adapter fittings and o-rings in each end of the fuel rail, if not already installed.
Please note that the bolt patterns on the two adapter fittings are different. If you are upgrading the
fuel system to an adjustable fuel pressure regulator, similar to Aeromotive p/n 13109, we recommend
using the following Aeromotive adapter fittings; p/n 15605 for AN-06 fuel line or Aeromotive 15607 for
AN-08 fuel file.
13. Place a thin coat of light oil in the fuel rail fuel injector bores and in the lower intake manifold injector
bores to help prevent cutting the o-rings during installation.
14. Carefully place each of the four fuel injectors in the corresponding fuel injector bore of the Aeromotive
fuel rail.
15. After insuring that the injectors are properly seated in the intake manifold injector bores, install the
three mounting bolts.
16. If you are maintaining the OEM fuel pressure regulator and OEM fuel supply line, reinstall these
components. If you are upgrading the fuel system to an adjustable fuel pressure regulator (We
recommend Aeromotive 13109) and high pressure fuel lines and fittings, plumb the remainder of the
fuel system.