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Old 09-07-2008, 09:59 PM   #608 (permalink)
wagonman76
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Join Date: Jun 2008
Location: Northwest Lower Michigan
Posts: 1,006

Red Car - '89 Chevrolet Celebrity CL 4 door
Team Chevy
90 day: 36.47 mpg (US)

Winter Wagon - '89 Pontiac 6000 LE Wagon
90 day: 28.26 mpg (US)
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I agree, it is what it is. I like to try to get a good ballpark number for starters.

The only thing I can think of is maybe his injectors are controlled on the positive side, with a common ground. So say if the injectors happened to be fired one at a time, itd be 1 injectors worth of fuel per detected pulse if the ground is common. If thats not it, then who knows, no biggie.

Mine are controlled on the negative side, 3 at a time, 2 banks on separate circuits. I tap into the ground on one of the banks. So with one detected pulse I get the fuel from the 3 injectors on one bank, plus the fuel from the other 3 injectors whose pulse I do not detect. So 6 total per detected pulse.

BTW I just got my 2nd mpguino wired up, minus the 4 wire connector. I decided to try the Freeduino kit. Piece of cake once I used the process of elimination to figure out what everything was, and easy to solder. My board with buttons is a near perfect fit, I got it from a scrapped flat screen monitor and sawed off the end of the board with the 4th button. I also eliminated the other circuit board assembly and fit the diodes, resistors, and transistors right across the top of the board between the pins, which are just cut up paperclips.

Wow what a difference with the correct display. It seems quicker and clearer, and I like how it actually shuts off all the way. It sure is bright though, so I added a 21 and 10 into the brightness list to get some darker settings to try once it goes in the van, then we will see what setting we really need. The wife said blue would be cool, since it matches her stereo. I have another KF8040 enclosure from work, but Im not sure if Im using it yet. When she gets back with the van tomorrow, Ill see what kind of arrangement would be best so it can be easily seen but not block anything.
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