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D3 - Engine Bay Everything under the bonnet |
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Thread Tools | Display Modes |
#71
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By turning the cam sensor on that bank I want to see what it does to the corresponding actual cam setting and the phase setting values
Back in the day before we had cam sensors petrol injection used a system called block .....all the injectors would fire twice every engine cycle , then came along sequential injection ....so a cam sensor was needed so the ecm knows where the cam is and knows the time to inject ...a period just before inlet valve opens . In most cases if you unplug cam sensors on a sequential system it will revert back to block injection Where my head was going if phase sensor was off perhaps injector opening time was slightly off time ...coming to early or late which ever affecting overall fueling It's just thoughts mind . Hey there's a thought how about un plugging cam sensors and run it in block just for diag purposes to see what happens to fuel correction values , very often in block the car feels better ...more punchy , smoother makes power easier , got to be worth a try ...will put management light on but that doesn't matter. Keep at it ....! ! Last edited by Mechcanico Lee; 22nd January 2017 at 09:53 PM. |
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