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Do you think I should eliminate the FJO and go to good old resistors and see who things function? I just cant figure out why the engine wants to stop if I have spark and fuel and the injector opening timings are fully visible on the scope :? I always seem to come up with these odd ball problems. ![]() Here is what FJO had to say about the capture I gave them. Peter, The reason the injector current rises in a slope is because it is an inductor. Current through an inductor does not turn on/off instantly, that is the electrical properties of an inductor. This will also vary depending on the inductance and resistance of the injector as well as the supply voltage. The box is connected to the ground side of the injector and controls the current at that end so the voltage is irrelevant. However, you will see some voltage at the ground because there is always some ground resistance. With 4A and 1.4v you have a ground resistance of 0.35 ohms. This includes the ground resistance where the driver is grounded. The current measurement depends on how you are measuring it. The only accurate method is by using a fast response inductive pickup on the ground-side of a single injector. What is the injector pulse width during these random lean spikes? Technical Support ________________________________ FJO Racing Products Winnipeg, Manitoba, Canada mailto:techsupport@fjoracing.com http://www.fjoracing.com ph: 204-254-5623 ext 3 fax:204-257-3190 ________________________________________
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http://www.riceracing.com.au RICESP > F40 > Zonda > ZR1 Water Injection Specialist "Can't be defeated!, don't know the word!, shoulder to shoulder!, we'll fight the world!, WE CAN'T BE BEATEN!!!" |
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