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Telemetrix Tacho Not Working With Edis


baj25

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I connected my tacho to edis4 today, but it did not work. It works fine with the motorcraft amp and single coil, with tacho signal taken from coil -ve. On the edis, i connected the 2 coil negatives through diodes ( no zener) to the tacho but zilch. Anyone else had this trouble and if so how did you get around it? Ta, brian

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wot you lost me if you are running an eddis and you connect a tacho to it there is only one connection I have tried running a tacho from megajolt but would not work so now I run it straight from edis

Edited by tractor
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I am confident the diodes are the right way round. It seemed so easy, use the coil input as before! I had a look behind the dash and i am connected to the red/blue wire so it should work. I looked for the white/black wire for ecu tacho input but i could not see it, need to do some yoga and then get head back in footwell!

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