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Read more: D-Jetronic A to Z, just everything about it

Everyhing about Bosch D-Jetronic (some wrongly write D-Jetronik) fuel injection system equiped cars of all manufacturers from A as in auxiliary air valve via E las in ECU and M as in MAP sensor to Z as in zero adjustment. Plus a forum where Dr-DJet and other experts help with competent advice and repair instructions.

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Read more: D-Jetronic chapter  1: History

Chapter 1 of Dr-DJets D-Jetronic (some wrongly write D-Jetronik) series tells the history of electronic fuel injection systems from Bendix in 1957, first trials with AMC till it was first implemented by Bosch on 14. September 1967 in Volkswagen 1600 Type 3

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Read more: D-Jetronic chapter  2: Functional overview

Chapter 2 of D-Jetronic article series of Dr-DJet gives a functional overview of D-Jetronic fuel injection system from fuel supply and ignition to injectors

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Read more: D-Jetronic chapter  3: Engine Control Unit (ECU) - function, repair, tuning (revised)
Engine control unit (ECU)

Chapter 3 of D-Jetronic article series by Dr-DJet describes function, repair and tuning of the brain of D-Jetronic: The Engine Control Unit (ECU). All sensors are used here to calculate when and how long to open the fuel injectors. Opening times determine the amount of fuel injected.

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Read more: D-Jetronic chapter  4: Intake manifold pressure (MPS) sensor - function and repair
MAP sensor

Chapter 4 of D-Jetronic article series by Dr-DJet describes the function, adjustment and repair of the second most important part of D-Jetronic, the intake manifold pressure (MAP) sensor. It indirectly measures the amount of air sucked in by the engine and reports that to ECU. Other than today's MAP sensors it is an integral part of ECU electronics.

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Read more: D-Jetronic chapter  5: Injection valve (injector)
Einspritzventil

Chapter 5 of D-Jetronic article series by Dr-DJet describes the electrically operated injection valve. Do watch the hints for replacing their fuel hoses. If they leak you risk a fire in your engine!

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Read more: D-Jetronic chapter  6: Throttle switch
Throttle switch

Chapter 6 of D-Jetronic article series by Dr-DJet describes the throotle switch. It is specific per engine and there are 3 basic types: With and without full load contact and very early VW having only idle-run contact.

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Read more: D-Jetronic chapter  7: Trigger contacts / points
Trigger contacts

Chapter 7 of D-Jetronic article series by Dr-DJet describes trigger contacts or points. Trigger contacts (TC) are a wear and tear part and need maintenance and replacement.

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Read more: D-Jetronic chapter  8: Fuel pump and fuel pressure regulator
Benzinpumpe und Druckregler

Chapter 8 of D-Jetronic article series by Dr-DJet describes fuel-pump and pressure regulator

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Read more: D-Jetronic chapter  9: Cold start and auxiliary air (aka air slide) valve
Auxiliary air valve

Chapter 9 of Dr-DJet's article series describes auxiliary air valve (or air slide valve), cold start valve and thermo time switch. They are not controlled by ECU (exception BMW) and determine the engines cold run.

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Read more: D-Jetronic chapter 10: Engine wiring harness
Replacing wiring harness

Chapter 10 of D-Jetronic article series by Dr-DJet describes replacement of your engine wiring harness.

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Read more: D-Jetronic chapter 11: Testers overview
Der Standard-Tester

Chapter 11 of D-Jetronic article series by Dr-DJet describes testers that were made especially for this Bosch fuel injection system

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Read more: D-Jetronic chapter 12: Maintenance and Tuning

Chapter 12 of Dr-DJet's articel series is about, maintenance and adjusting. Little is necessary for this as D-Jetronic is considered maintenance free.

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Read more: D-Jetronic chapter 13: Troubleshooting and repair

Chapter 13 of D-Jetronic articles by Dr-DJet describes systematic fault finding (troubleshooting) and repair on your Bosch fuel injection system.

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Read more: D-Jetronic chapter 14: troubleshooting check list
Checklist

Chapter 14 of article series by Dr-DJet gives you a detailled checklist for ticking off every single action for a systematic test of your car. All actions are linked to descriptions in article series.

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Read more: D-Jetronic chapter 15: Jaguar XJ12 und XJ-S specialties
Jaguar XJ12 5.3

Chapter 15 of D-Jetronic article series by Dr-DJet describes specialties of Jaguar's D-Jetronic implementation in XJ12 and XJ-S

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Read more: D-Jetronic chapter appendix A: MB engine components
MB engine components

Appendix A of D-Jetronic article series by Dr-DJet lists all componets for injection and ignition of all Mercedes-Benz models. It is a sysiphos task to research and correct all those numbers and has taken a lot of time.

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Read more: D-Jetronic chapter appendix B: Pinout of ECUs by car manufacturer
D-Jetronic ECU pinout

Appendix B of D-Jetronic article series by Dr-DJet lists pinout of all ECUs of all D-Jetronic equipped cars. With this you can test your D-Jetronic.