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I supported Toymods
Location:
Brisbane, QLD
Registered:
May 2002
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Re: Fuel Injector Holy Grail
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Fri, 24 May 2002 14:25
 
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I would have to agree 110% with ed_ma61 when it comes to injector impedance. I think its only natural that newer injectors will be engineered to use less energy and therefore have a higher impedance (assuming the same supply rail voltage, where i see no reason for increase).
If you are really worried about the ECU, which should have some form of overload protection in the driver circuitry (think about a wire short... a critical device like the ECU should be able to function when something like that happens in one of the many things it drives) in any case, you can use an isolater circuit (simple and cheap to make) which sits between the ECU o/p and the injector i/p. Since the injector drive signal is less than 10KHz in bandwidth (say even 20KHz) you can use fairly high latency, audio quality components (with commercial temperature tolerances i guess? or is industrial temperature tolerances required? I would think not...).
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| | Subject | Poster | Date |
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Fuel Injector Holy Grail
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ed_ma61 | Fri, 24 May 2002 05:10 |
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Re: Fuel Injector Holy Grail
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kevz0r | Fri, 24 May 2002 05:17 |
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Re: Fuel Injector Holy Grail
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ed_ma61 | Fri, 24 May 2002 05:25 |
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Re: Fuel Injector Holy Grail
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kevz0r | Fri, 24 May 2002 06:06 |
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Re: Fuel Injector Holy Grail
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kevz0r | Fri, 24 May 2002 08:54 |
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Re: Fuel Injector Holy Grail
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justcallmefrank | Fri, 24 May 2002 07:34 |
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Re: Fuel Injector Holy Grail
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ed_ma61 | Fri, 24 May 2002 07:53 |
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Re: Fuel Injector Holy Grail
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gianttomato | Fri, 24 May 2002 07:55 |
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Re: Fuel Injector Holy Grail
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ed_ma61 | Fri, 24 May 2002 08:09 |
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Re: Fuel Injector Holy Grail
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ed_ma61 | Fri, 24 May 2002 08:12 |
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Re: Fuel Injector Holy Grail
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justcallmefrank | Fri, 24 May 2002 08:15 |
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Re: Fuel Injector Holy Grail
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gianttomato | Fri, 24 May 2002 08:25 |
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Re: Fuel Injector Holy Grail
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japspec | Fri, 24 May 2002 09:06 |
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Re: Fuel Injector Holy Grail
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ed_ma61 | Fri, 24 May 2002 11:07 |
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Re: Fuel Injector Holy Grail
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Manny | Fri, 24 May 2002 11:38 |
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Re: Fuel Injector Holy Grail
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japspec | Fri, 24 May 2002 11:34 |
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Re: Fuel Injector Holy Grail
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ed_ma61 | Fri, 24 May 2002 11:56 |
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Re: Fuel Injector Holy Grail
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ed_ma61 | Fri, 24 May 2002 12:09 |
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Re: Fuel Injector Holy Grail
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japspec | Fri, 24 May 2002 12:11 |
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Re: Fuel Injector Holy Grail
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Manny | Fri, 24 May 2002 12:28 |
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Re: Fuel Injector Holy Grail
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japspec | Fri, 24 May 2002 12:43 |
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Re: Fuel Injector Holy Grail
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japspec | Fri, 24 May 2002 12:46 |
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Re: Fuel Injector Holy Grail
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humble | Fri, 24 May 2002 14:25 |
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Re: Fuel Injector Holy Grail
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gianttomato | Fri, 24 May 2002 20:37 |
