Multec 3.5 Fuel Injector Application Manual Table of Contents
Delphi Energy and Chassis Systems
Revision: 11/05-1 iii
4.3 SEAL RINGS.....................................................................................................................................4-8
4.4 ELECTRICAL INTERFACE...................................................................................................................4-9
4.4.1 Electromagnetic Compatibility..............................................................................................4-9
4.4.2 Wire Routing.........................................................................................................................4-9
4.4.3 Fuel Injector Polarity...........................................................................................................4-10
4.4.4 Fuel Injector Connector ......................................................................................................4-11
4.4.5 Controller............................................................................................................................4-14
5. 0 SOFTWARE .......................................................................................5-1
5.1 GENERAL ........................................................................................................................................5-1
5.2 CONTROL ALGORITHMS ................................................................................................................... 5-2
5.2.1 Injection Methods .................................................................................................................5-2
5.2.2 Open Loop Injector and Fuel Rail Characterization ............................................................. 5-4
5.2.3 Open-Loop Characterization ................................................................................................5-9
5.2.4 Closed-Loop Corrections ...................................................................................................5-14
5.2.5 Fuel Injection Timing ..........................................................................................................5-15
5.3 DIAGNOSTICS ................................................................................................................................5-17
5.3.1 Fuel Trim Diagnostics......................................................................................................... 5-17
5.3.2 Oxygen Sensor Diagnostics............................................................................................... 5-18
5.3.3 Catalytic Converter Diagnostics .........................................................................................5-18
5.3.4 Injector Driver Diagnostics .................................................................................................5-18
5.3.5 Engine Misfire Diagnostics.................................................................................................5-18
5.3.6 Factors Affecting Engine Diagnostics ................................................................................5-19
6. 0 PRODUCT HANDLING ......................................................................6-1
6.1 PACKING PROCEDURES ...................................................................................................................6-3
6.2 RECEIVING AND STORAGE................................................................................................................6-4
6.3 MOVEMENT WITHIN THE PLANT ........................................................................................................6-4
6.4 INSTALLATION IN FUEL RAIL .............................................................................................................6-4
6.5 INSTALLATION ON THE ENGINE..........................................................................................................6-5
6.6 COMPONENT ASSEMBLY BEST PRACTICES ....................................................................................... 6-8
6.7 MAINTENANCE, SERVICE AND REPAIR ..............................................................................................6-9
6.7.1 Diagnosing Malfunction Codes ............................................................................................6-9
6.7.2 Replacement Techniques ....................................................................................................6-9
6.7.3 Adjustments........................................................................................................................6-11
6.7.4 Interchangeability ...............................................................................................................6-11
6.8 SUPPORT OF COMPONENT AFTER SALE..........................................................................................6-11
7. 0 RECOMMENDATIONS AND PRECAUTIONS...................................7-1
7.1 TEMPERATURE ................................................................................................................................7-1
7.2 DURABILITY.....................................................................................................................................7-2
7.2.1 Injector Characteristics.........................................................................................................7-3
7.3 WEAR AND CONTAMINATION ............................................................................................................ 7-3
7.3.1 Internal Corrosion.................................................................................................................7-3
7.3.2 External Exposure ................................................................................................................7-3
7.3.3 Plugging................................................................................................................................7-4
7.3.4 Contamination Resistance ...................................................................................................7-4
7.3.5 Fuel System Generated Contamination ............................................................................... 7-5
7.3.6 Maximum Fuel Pressure ......................................................................................................7-5
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