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    Injector driver

    What I mean by mine description. What could make a short circuit of two injectors bank together ? The engine ECU harness 55 pins unplugged. Injectors first and second negative terminal side have share a wire somewhere and that could be Check Control Module second think could be Cluster and third...
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    Injector driver

    According to our schematic ODD numbered injectors should all 3 only connect to pin 16 and another all 3 only to pin 17 that is for ECU ground only another terminal of the injectors is positive 12v all injectors connected together with 12v battery when ignition is ON position. The ECU harness...
  3. A

    Injector driver

    Yes shielding looks good pin 3 of the sensor goes to ECU harness. Do you have any advise how to fix injectors wiring ? The engine ECU has two pins 16 and 17 which controlls injectors ground. ECU pin 16 connected with injectors ground all 3 together is 1-3-5. And ECU pin 17 also connected with 3...
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    Injector driver

    maybe connected to wrong ECU pins if is not make any difference when engine is running when sensor plugged in or unplug out. How may I check if sensor shielding connected good in sensor or not short ?
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    Injector driver

    Connector X1521 (pin 3) carries this shielding connected to ECU ground pin 19. The problem could be sensor wiring terminals is mess it up. Sensor terminal 1 needs to be replaced with terminal 2. In sensor difficult to replace terminals 1 with 2 but in ECU connectors plug it is easy.
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    Injector driver

    Could R561 block any 12V from reaching the sensor and make it 5v ?
  7. A

    Injector driver

    5v reference at pin 8 and pin 31 is ground.
  8. A

    Injector driver

    oscilloscope or digital meter have same readings. On wiring diagram shown 5v reference from the sensor or from the ECU and that could be check it with scope or meter no metter what tool you are using when engine is running if there is no 5v present when engine is running the sensor connected or...
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    Injector driver

    Here don't need to download
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    Injector driver

    Could you help me to understand where this wire connected in circuit board pin 8 and pin 31 become together and go somewhere ?
  11. A

    Injector driver

    I just measure something coming out of the sensor which was disconnected from ECU plug while the engine was running the voltage reading was 0.01v and aslo I did check when sensor was connected to the engine ECU plug when engine was running the voltage reading was same 0.01v. what do you thing...
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    Injector driver

    What do you think this 5v on wiring diagram the sensor send small AC voltage to the engine ECU or the engine ECU should have present 5v when ignition is ON ?
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    Injector driver

    Cylinder identification sensor working properly. It is dragging the 0.01v down to zero. New sensor and old used sensors they all have same voltage readings 0.01v when number 6 sylinder spark plug is firing. This sensor seat on spark plug wire of the sixth cylinder and pick up small AC voltage...
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    Injector driver

    BMW 735i E32 1990 engine ECU motronic 1.3 and software number 55376215. I didn't do any reprogramming
  15. A

    Injector driver

    Firing all six injectors together without cut-off one group of the three injectors. Cylinder identification sensor should disconnect one group of the three injectors when number six cylinder is firing. Also when ignition is ON the engine ECU should have present 5v at connector of cylinder...
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    Injector driver

    Do you mean one part of the engine cycle that is 360 degrees of the crankshaft. One rotation of the crankshaft is 360 degrees for 3 injectors and 3 spark plugs to fire ? 720 degrees will be 6 injectors and 6 spark plugs fired. 3 injectors and 3 spark plugs it takes 60 m/s to fire and next 3...
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    Injector driver

    Yes I also think so that 3 injectors firing when at the same time firing 3 spark plugs. When injectors 1-3-5 is firing then 3 spark plugs firing in firing order 1-5-3 then next injectors 2-4-6 firing with firing spark plugs in firing order 6-2-4.
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    Injector driver

    I am saying that the engine ECU turns on all injectors at the same time. The engine ECU has 2 pins. One pin is fo 3 injectors and another pin is for another 3 injectors. I don't know how the engine ECU should working on those injectors. It should firing all injectors at the same time or it...
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    Injector driver

    Module will be controling ground circuit on/off of the injectors only the positive side will be always powered with 12v. It would be better if module firing all injectors separately same like spark plugs then the engine could not get any misfire and emissions would be better.
  20. A

    Injector driver

    Yes the engine ECU not working properly as it should. The engine ECU can be by-pass not everything just injectors timing by disconnected pins 16 and 17 which is two banks of injectors and connected modified injectors driver to those 6 injectors which will control two banks of the injectors on 6...
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