· OBD II fault code PD is a generic code that is defined as “Fuel Injector Driver Circuit Performance – Bank 1”, and is set when the PCM (Powertrain Control Module) detects an inconsistency between the number injection command, and injection confirmation signals for one or more fuel injectors. The fuel injector driver is an integral part of the PCM or the electronic fuel injection (EFI) controller (if applicable). The PCM controls injector timing and pulse width by applying a ground pulse to the circuit at exactly the right instant. · Fuel injection drive circuit. The engine of this experimental object uses the internal resistance of the injector to be 3 ohms and the power is 12w. The MOSFET is used to control the on and off of the injector. The drive circuit has a total of four paths, which are sprayed in the order of The fuel injection drive circuit is shown in Fig. www.doorway.ru: Baoqing Deng, Yuchuan Jia, Zhang Bo, Zhenyu Deng, Zengfa Gao.
The Engine Control Module supplies voltage to each fuel injector on the injector positive voltage control circuits. The ECM energizes each fuel injector by grounding the control circuit of that fuel injector. The ECM monitors the status of the injector positive voltage control circuits and the fuel injector control circuits. When the ECM detects a fuel injector circuit malfunction, the fuel injectors in the affected group will be disabled. Perhaps this circuit (which I designed for another forum member and has been built) would help? As drawn the circuit needs negative-going ~ 12V pulses to trigger it. For each pulse, the injector initially draws high-current during a 'fire' period, then a lower-current during a 'hold' period. Both periods are adjustable with potentiometers. Injector Circuit Wiring DiagramAmazon Printed Bookswww.doorway.ru Kindle Editionwww.doorway.ru
If you’re driving down the road and your engine sputters, your car temperature gauge rises, your car goes dead when you’re going up a hill or the car surges without pressing the gas pedal, you may have a bad fuel pump. Take a look at how to. We all have fuel tanks in our cars, but most of us don’t really pay attention to them, unless they’re empty that is. Fuel tanks come in a variety of sizes, with compact cars generally having much smaller capacity tanks than large cars or tr. Car trouble always seems to happen at the most inconvenient times, usually when you are already running late or on your way to an extremely important commitment. Turning your key to start the engine only to hear it crank can be one of the m.
0コメント