Vortech 2003-2006 G35 User Manual

Page 28

P/N: 4NZ020-010

04JUN08 v6.0 Nissan 350Z(4NZv6.0)

7.1 FUEL MANAGEMENT UNIT (FMU) RECALIbRATION (2005 G35 Only)

NOTE: This step applies to Model Year 2005 Infiniti G35 vehicles only! For all

others, skip the following and proceed with Section 7.2.

Remove the six allen-head screws on top of the fuel

management unit (FMU).

Remove the diaphragm and 7:1 disk and ring from

inside of the FMU.
WARNING:

Do not remove the four screws hold-

ing the valve body. Once taken apart,

the valve would have to be replaced.

Install the replacement 6:1 ring (with the notched

part facing FMU body) around the four screws inside

the FMU. (The 6:1 components are smaller diameter

than the 7:1).

Place the 6:1 disk inside the ring next to the piston.

Install the new diaphragm and carefully line up the

holes to the body.

Place the spring retainer in the center of the dia-

phragm with the spring between it and the cover.

(See Fig. 7.1-a.)

Reinstall the FMU cover with the six allen-head

screws. Do not over-tighten the screws. The correct

torque is 24 in/lb (2ft/lb).

7.2 FUEL MANAGEMENT UNIT (FMU) AND FUEL PUMP INSTALLATION

Fig. 7.2-a

NOTE: Ensure that the fuel lines are not kinked

and have smooth bends, no chafing etc.

Install the FMU in the location shown in

Fig. 7.2-a using the supplied sheet metal screws

(drill a pilot hole at each location before installing the

screw.)

Disconnect the fuel line fitting on the passenger’s

side frame rail near the engine.

Connect the FMU hoses to the respective fittings on

the fuel lines. (See Fig. 7.2-c.)

Install the fuel pump on the driver’s side of the front

cross member as shown. (See Fig. 7.2-b.) Run a

ground wire from the negative terminal on the fuel

pump to one of the mounting screws.

Fig. 7.1-a

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