LEIGH211 Posted August 3, 2022 Report Share Posted August 3, 2022 Hi I have a old datsun 280zx and been unsuccessful with the tacho convenrtion using original and voltage spike devices to trigger. I have some old ford fester gauges I've taken apart. Has anyone got any clues on how to drive it? Looks like it's just two coils with 4 connections?. plan is to get it working then replace datsun tacho electronics to give a retro look. Im also running realdash and windows 10 tablet. Engine is 2jz nat with link fury g4+. Tha ks leigh Quote Link to comment Share on other sites More sharing options...
Adamw Posted August 4, 2022 Report Share Posted August 4, 2022 15 hours ago, LEIGH211 said: Has anyone got any clues on how to drive it? Looks like it's just two coils with 4 connections?. I imagine there would be a driver chip on the pcb somewhere. What did you try for a booster device? I have never had much trouble getting high level tachos to work. Did the tacho used to connect to the negative or positive side of the coil originally? Quote Link to comment Share on other sites More sharing options...
LEIGH211 Posted August 5, 2022 Author Report Share Posted August 5, 2022 Hi Adam I made a tacho driver but suspect I had damaged the tacho using a standalone pwm driver prior to this at 5v (was working great) but couldn't work out how to do tacho pwm output. If you can recommend a small unit I can retro fit that works with the link output that would be awsome. There is plenty of room in datsun cluster. Tha ks leigh Quote Link to comment Share on other sites More sharing options...
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