Delphi Multec 3.5 - Page 8

Table of Contents Multec 3.5 Fuel Injector Application Manual
iv Delphi Energy and Chassis Systems
Revision: 11/05-01
7.3.7
Injector Storage ....................................................................................................................7-5
7.4 PREVENTING ENGINE HYDRO-LOCK .................................................................................................. 7-6
7.4.1 Engine Prime Pulse at Start .................................................................................................7-6
7.4.2 Vehicle Assembly Fuel System Prime .................................................................................7-7
7.5 INJECTOR HARNESS CONNECTOR – CORROSION ..............................................................................7-7
8. 0 TESTING RECOMMENDATIONS AND PRECAUTIONS ..................8-1
8.1 DYNAMOMETER TESTING .................................................................................................................8-1
8.1.1 Cylinder-to-Cylinder Distribution ..........................................................................................8-1
8.2 DURABILITY TESTING .......................................................................................................................8-1
8.3 DYNAMIC VEHICLE TESTING ............................................................................................................. 8-2
8.4 STANDARD VEHICLE DEVELOPMENT TESTS.......................................................................................8-2
8.4.1 Hot Fuel Handling.................................................................................................................8-2
8.4.2 Spray Effect on Emissions ................................................................................................... 8-3
8.4.3 Cold Driveability and Startability ..........................................................................................8-3
8.4.4 Crank vs. Leak .....................................................................................................................8-4
8.4.5 Altitude Driveability and Emissions ...................................................................................... 8-4
8.4.6 Low Pulse-Width Fueling Accuracy......................................................................................8-4
8.4.7 Driveability Index Fuel Sensitivity......................................................................................... 8-4
8.4.8 Spark Plug Fouling Tests .....................................................................................................8-5
8.4.9 Voltage Sensitivity ................................................................................................................8-5
8.4.10 Manifold Pressure Sensitivity ...............................................................................................8-5
8.4.11 Standard Durability Tests ..................................................................................................... 8-5
8.4.12 Icing Tests ............................................................................................................................8-5
8.4.13 Production Limit Verification Tests....................................................................................... 8-5
9. 0 VALIDATION REQUIREMENTS ........................................................9-1
9.1 GENERAL ........................................................................................................................................9-1
9.2 VALIDATION TESTS .......................................................................................................................... 9-1
9.2.1 Preliminary Physical Analysis .............................................................................................. 9-2
9.3 ENVIRONMENTAL EXPOSURE............................................................................................................ 9-2
9.3.1 External Corrosion................................................................................................................9-2
9.3.2 Temperature.........................................................................................................................9-3
9.3.3 Life Cycling ...........................................................................................................................9-3
9.3.4 Mechanical Integrity .............................................................................................................9-4
9.3.5 Overpressurization ...............................................................................................................9-5
9.3.6 Over-voltage.........................................................................................................................9-5
9.3.7 Injector Noise .......................................................................................................................9-6
9.3.8 Note on Additional Exposures..............................................................................................9-6
9.4 VERIFICATION.................................................................................................................................9-6
10. 0 APPENDIX......................................................................................10-1
10.1 INTRODUCTION. ....................................................................................................................10-1
10.2 MULTEC 3.5 FUEL INJECTOR SYSTEM CUSTOMER COMPONENT CHECKLIST ............................10-2
10.3 COMPONENT APPLICATION CHECKLIST ..................................................................................10-8
10.4 COMPONENT ASSEMBLY BEST PRACTICES...........................................................................10-12
10.5 GLOSSARY OF TERMS AND ABBREVIATIONS..........................................................................10-17
11. 0 INDEX.............................................................................................11-3