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Old 07-23-2008, 08:50 AM   #11 (permalink)
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I'm guessing the N146 quantity valve signal would be a lot easier to read than the variable inductor on the position sensor. If you hooked up the former to an mpguino today you should get a signal similiar to injector duty cycle. Though I think an RPM signal will need to be added to make complete sense out of the quantity signal or sender. Like maybe on t28 (on the schematic) use pin 10 for the rpm signal, and pin 27 for the vehicle speed signal.

If adding a signal, I'd suggest analog 1 for the engine speed, and the usual 100k resistor with a 5.1 zener for now. And the PWM for quantity just like the injector signal (through digital pins 2 and 3), and leave vehicle speed on analog 0. Then everytime you get a rpm signal, look at the current quantity signal and figure out how much fuel just was squirted in.

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Old 07-23-2008, 02:56 PM   #12 (permalink)
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Hello all,

Unfortunately I won't have time to build an mpguino for another month (and I don't know much about engines), but I do have a 2003 Jetta TDI that I'd like to get an mpguino working on. Just thought I'd drop in and mention interest in this endeavor and a willingness to try things out on my TDI once I get the mpquino built.

- Adam
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Old 07-23-2008, 04:02 PM   #13 (permalink)
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i was actually looking for the therad known as build one last night, but couldnt locate it, could any one tell me what to order to get the ball rolling?
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Old 07-23-2008, 04:06 PM   #14 (permalink)
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Oops, here it is:
http://ecomodder.com/forum/showthrea...html#post22856


Leaning towards the iDuino these days and the green LCD from mouser. The rest can be had at the "shack" or mouser
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Old 07-23-2008, 06:41 PM   #15 (permalink)
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Hey DCB, could you post a link to that green LCD from mouser? I looked thru the catalog, and there's like 50 green/yellow LCD's, and you can't sort by driver chip type.
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Old 07-23-2008, 06:51 PM   #16 (permalink)
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I added it to post 1, but here it is. I should do the whole mouser part number list thing
NHD-0216K1Z-FL-YBW

It should have good temperature response as well, and it has pins on the top and bottom if that makes things any easier.
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Old 07-23-2008, 06:53 PM   #17 (permalink)
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Oh, I didn't see it - there's a lot of info in that first post. Thanks again!
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Old 07-24-2008, 06:33 PM   #18 (permalink)
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Parts ordered.
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Old 07-25-2008, 08:56 AM   #19 (permalink)
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Old 07-28-2008, 12:13 PM   #20 (permalink)
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Just got shipment notifications!
I'm getting Excited.

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