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| My MPGuino is not working - ECU hookup? | |
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| Tweet Topic Started: May 24 2009, 05:38 PM (769 Views) | |
| rmcelwee | May 24 2009, 05:38 PM Post #1 |
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I just got my new MPGuino straight from opengauge.org in the mail a couple of days ago. I hooked it up to my '93 Geo Metro Convt today and I am seeing 999 MPG instant. I believe I used the default setup on everything with the exception of vehicle weight (I think I put something in like 1600 or so). Anyway, if I am driving 35 MPH and go to screen #1 it shows: 9999/"working MPH" 9999/"working distance" If I go to screen #8 it shows: 1.4/G0000000 (never changes) 1.4/G0000000 (never changes) Can anyone help me troubleshoot this thing? I have the unit hooked straight to the ECU (well, using the wiring harness at the ECU). I was tol that sometimes this doesn't work but I cannot figure out why hooking it up at the ECU vs hooking it up at the injector could cause a problem. You can see my install here (work in progress): http://www.lightweightmiata.com/geo/mpguino/ |
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| wikityler | May 24 2009, 10:31 PM Post #2 |
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Some say...
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Sounds like it's not getting the injector signal, thus the high millage. I don't suppose you have a logic probe or a 'scope? |
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| rmcelwee | May 25 2009, 03:01 AM Post #3 |
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Hooking up straight to the injector fixed it. I am not sure why I couldn't get it to work using the wire at the ECU. I will investigate this further when I get a chance. For now, I am going to start rebuilding the engine so I won't have time to play with it for a while. |
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