Installation manual

4-3

90-898305

Table of Contents

Table of Contents..............................................................................................2

Table of Contents..............................................................................................3

Powerhead Long Term Storage........................................................................4

Storage Preparation ......................................................................................4

Fuel Starvation..................................................................................................6

Models Affected.............................................................................................6

Inspection/Test ..............................................................................................6

Test Procedure..............................................................................................8

Test Procedure..............................................................................................9

Correction:...................................................................................................10

Basic Fuel System Description .......................................................................13

Basic Fuel System Description .......................................................................14

2.5L OptiMax Fuel Schematic.........................................................................15

OptiMax DFI Fuel Schematic w/Fuel Cooler ...................................................16

3.0L OptiMax Fuel Schematic.........................................................................17

3.0L OptiMax Fuel Schematic.........................................................................18

3.0L OptiMax Fuel Schematic (Cont.).............................................................19

OptiMax 1.5L Fuel Schematic.........................................................................20

OptiMax Fuel and Direct Injector Interface......................................................22

Vapor Separator Fuel Flow .............................................................................23

Integrated Vapor Separator ............................................................................24

2003 MY ......................................................................................................24

2002 & Up 2.5L OptiMax Air/Fuel Schematic..................................................26

2002 & Up 2.5L OptiMax Air/Fuel Schematic..................................................27

Fuel Pressure Regulator .................................................................................28

Sectional View.............................................................................................28

Tracker Valve (V6 Models Only)..................................................................29

Fuel Injector.................................................................................................30

Disconnecting Harness Connectors from Ignition Coils and/or Injectors.....31

Direct Injector ..............................................................................................31

2.5 & 3.0 Liter OptiMax................................................................................32