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OBDII Computer in a NON OBDII Car
Topic Started: May 3 2011, 11:08 PM (1,944 Views)
bogs
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Duct tape heals all wounds

mcmancuso
May 4 2011, 09:49 AM
It does have the RPM function in the program, but you have to enable it. I think you can only do this by re-flashing the chip in the most recent version. I believe it was left out because its keyed off the injector pulse, and the injector pulse stops in many circumstances: EOC, DFCO, etc...
Yep, they were planning it exactly as you say, but also as you say there are a lot of circumstances where the injector cuts off, making it (imho) worthless as a tach. You can view the actual code here:
-> http://code.google.com/p/opengauge/source/browse/trunk/mpguino/mpguino.cpp <-

As far as the Mpguino being a pain to hook up, if someone as electronically stupid as myself can do it, I would suspect anyone could do it. The biggest problem I noticed other people having was that they weren't getting clean enough contact signals.

I did this by fashioning my own form of t-pins from paper clips and inserting them into the harness connectors, instead of stripping out wires. It has been working fine in this fashion since JBD sent me the unit.
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nerys
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Grr

ahh screw it. its only $55 so I bit the bullet and got the pre assembled unit paid for :-)
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