Vortech 1986-1993 Ford 5.0 Mustang User Manual

Page 15

P/N: 4FA020-010

16APR09 v4.1(86-93 5.0 Mus (4FA v4.1))

A. Relocate the relay using the stock screw.
B. Locate the fuel management unit against the inner fender

panel ahead of the shock tower about an inch from the

top. Drill holes and secure with the sheet metal screws

provided. (See Fig. 5-a.)

C. Disconnect the fuel rail return line at the rubber hose

on the engine's lower right side with a 3/8" spring lock

disconnect tool. The return line

does not have the

pressure test fitting on it.

D. Connect the Fuel Management

Unit (FMU) input hose (the hose

that goes to the 90° fitting on the

side of the FMU) to the return line

coming from the fuel rail regulator

as shown in Fig. 5-b.

E. Connect the unit’s return hose

(that connects to the center fitting)

to the stock return hose.

F. Secure the fuel lines away from

the exhaust header with the tie

wraps provided.

G. Connect the top fitting on the FMU

to the multi-branch fitting located

on the driver's side firewall using

the supplied 5/32" hose. Use the

port with the "B/R" designation.

(See Fig. 5-c.)

5. FUEL MANAGEMENT UNIT (skip this step for Renegade applications)

NOTE: Add on inline fuel pump

with unit provided if install-

ing high output system.

Fig. 5-a

Fig. 5-b

Fig. 5-c

FMU

RELAY

SHOCK TOWER

CONNECT TO

MANIFOLD

VACUUM/PRESSURE

INLET

FUEL LINE

FROM

STOCK

REGULATOR

OUTLET

(FUEL FROM HERE

RETURNS TO TANK)

B/R

S/C

REMOVE VACUUM CAP

AND ATTACH FMU LINE HERE