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Old 12-12-2017, 01:58 PM   #26
daijoubanai
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Quote:
Originally Posted by M.H. Yount View Post
If it went in without a 'resistor' adjustment, it's likely set up for a 12V signal just as the VDO tach was. When I hooked up the LS ecu output (5V) to the stock Volvo/VDO tach without any adjustment, it read WAY low. Had to "T" in another 12V connection through a 1000 ohm resistor.

Don't know my Civic nomenclature -- what year did the tach come out of?
ek civic is 96 - 00. I believe the EG civic, 92 - 95, also has the same size gauges.

And yeah, the tach output wire from MS is going straight into the signal in the tach, nothing in between.
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Old 12-12-2017, 02:02 PM   #27
M.H. Yount
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Oh -- my bad -- forgot the MS (forgot aftermarket ecu)....do you know what voltage output signal it provides?
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Old 12-14-2017, 04:53 AM   #28
FreeEMSFred
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Nice work. Inspiring. My 240 wagon hasn't had a working tach since I bought it. My 244 has one, though, so I'll probably just pilfer that, however this (or similar) could be a good drop in for that car, at that point. Thanks for sharing it :-)
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Old 12-14-2017, 10:01 AM   #29
tryingbe
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Quote:
Originally Posted by M.H. Yount View Post
Oh -- my bad -- forgot the MS (forgot aftermarket ecu)....do you know what voltage output signal it provides?
Quote:
Originally Posted by Broke4speed
It uses a square wave, 5v
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