Here is my set up. MicroSqurit V3.0, running V3.77 SW. TunerStudio latest version and registered.
The target is a 2008 Suzuki DR650 single cylinder motorcycle. I am going for fuel only, at least for now.
I have CLT, IAT, TPS, and MAP hooked up and all read fine.
I tied the VR1 inputs to the OEM VR output signal that drives the CDI ignition system. (I tried reversing them but no help) Key settings: I set the crank wheel teeth to 1, skipped teeth to zero. Rising edge. I also tried 2 teeth, no change, and zero teeth, lost tach output signal.
One unusual aspect of this bike is that there are actually two teeth and both are very long, like 2" for the first, a ¼” or so gap and then about 1 1/2 " for the second. The result is that on the VR input there is a short positive pulse (about .8MS at idle) from the leading edge for the first tooth, then it returns to zero for about 4 MS, and then a short negative pulse from the trailing edge of the first tooth, followed very quickly by a positive pulse from the leading edge of the second tooth. And finally another negative pulse at the end. The point of all this is that there is really only one clean zero crossing, that being the gap between the two teeth, because at that point it goes from a negative pulse from the end of the first tooth to a positive pulse from the leading edge of the second.
Sorry for the long winded explanation but I was just trying to come up with a theory on why I have two teeth and only one tach pulse coming out.(which is what I want) But still no clue why I see no RPM reading.
Any ideas?
Thanks in advance,
John
I hadn't even looked at the injection set up because I was just trying to get RPM working first but the number of cylinders is set under injector set up.
