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Tach Specs
Does anybody know what the specifications are on the signal that goes to the tach on the dash display? Is it a pulse or a voltage?
Either that or the crank sensor?
I need to pick up RPMs for a little side project.
Thanks!
| | Reply » Tach Specs |
The engine speed signal out of the DME should be a clean, 12V, active low square wave with 1 pps per 20 rpm, if I have calculated correctly. Let me know if I haven't.
| | Reply » Tach Specs |
Quote: | The engine speed signal out of the DME should be a clean, 12V, active low square wave with 1 pps per 20 rpm, if I have calculated correctly. Let me know if I haven't. | Cool, just what I needed, thanks!
| | Reply » Tach Specs |
John, do you know what the speedometer signal is? I'd like to build a signal conditioner to correct my speedometer. 11% error is ridiculous!
| | Reply » Tach Specs |
Quote: | John, do you know what the speedometer signal is? I'd like to build a signal conditioner to correct my speedometer. 11% error is ridiculous! | A vendor that does one:
http://www.dakotadigital.com
| | Reply » Tach Specs |
Thanks for the link Ian. I guess I'll just have to figure out where to connect it so that it will drop the speedo read by 11% but not affect the odo read. More research,,,
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Tach Specs