Getting started, Relieving fuel pressure – AEM 25-304BK Honda/Acura Adjustable Fuel Pressure Regualtor User Manual
Page 6
WARNING!!!
Read and understand these instructions BEFORE attempting to install this product
• Do not smoke while working on the fuel system.
• Keep open flames or sparks away from your work area.
•
Be sure to relieve fuel pressure while engine is off.
Note: 1990-1993 Honda Accord and 1992-2000 Honda Prelude require the use of the AEM Hi-Flow Fuel Rail
P/N 25-104. The AEM Adjustable Fuel Pressure Regulator can NOT be used with the stock fuel rail on these
applications.
Note: Refer to attached table of applications to determine the correct AEM Adjustable Fuel Pressure
Regulator Kit that is required for your year/model vehicle.
1)
Getting started
a) Make sure vehicle is parked on a level surface.
b) Set parking brake.
c) Disconnect the negative cable from the negative battery terminal.
d) If engine has run within the past two hours let it cool down.
e) Clean the area on the fuel rail adjacent to the regulator.
Note: It is recommended to replace the washer between the service bolt and the special banjo bolt whenever the
service bolt is loosened. (where equipped)
2)
Relieving fuel pressure
a) Remove the fuel fill cap.
b)
On models equipped with a 6mm service bolt. (Illustrated below) If your vehicle is
not equipped with a 6mm service bolt, proceed to step c.
i)
Use a box end wrench on the 6mm service bolt on top of the fuel filter, while holding the special banjo
bolt with another wrench.
ii) Place a rag or shop towel over the 6mm service bolt.
iii) Slowly loosen the 6mm service bolt one complete turn.
iv) Leave service bolt loose until all pressure has been relieved.
v) Tighten service bolt to 10 lbf-ft.
c)
On models not equipped with a 6mm service bolt.
i)
Use a box end wrench on the 12mm banjo bolt on top of the fuel filter.
ii) Place a rag or shop towel over the 12mm banjo bolt.
iii) Slowly loosen the 12mm banjo bolt one complete turn or until all pressure has been relieved.
iv) Torque the 12 mm banjo bolt to 25 lbf-ft.
Service Bolt
10 lbf
z
ft
Fuel Filter
Shop Towel