Hi all,
I'm new here but using a VEMS Round for years now. It is my main AFR gauge and also connects to the MS DIY PNP.
I have recently changed my dashboard and removed the stock fuel gauge.
I have noticed the VEMS Round has a second line of digits which is now unused.
If possible I would like it to display the fuel level in my tank (so I don't run out ;)).
However I don't know where to start, anybody here how as som experience doing this and could help?
What I know:
Miata fuel sensor reads 5 Ohms full and 114 Ohms empty.
To which cable do I connect the sensor lead?
What settings do I use in the VEMS tune software?
And finally, is simply wiring it in enough, or will I need a signal conversion before wiring it in?
Hope someone can help, thanks!
Quote from: Grimmie on October 24, 2021, 09:55:04 AM
Hi all,
I'm new here but using a VEMS Round for years now. It is my main AFR gauge and also connects to the MS DIY PNP.
I have recently changed my dashboard and removed the stock fuel gauge.
I have noticed the VEMS Round has a second line of digits which is now unused.
If possible I would like it to display the fuel level in my tank (so I don't run out ;)).
However I don't know where to start, anybody here how as som experience doing this and could help?
What I know:
Miata fuel sensor reads 5 Ohms full and 114 Ohms empty.
To which cable do I connect the sensor lead?
What settings do I use in the VEMS tune software?
And finally, is simply wiring it in enough, or will I need a signal conversion before wiring it in?
Hope someone can help, thanks!
you will need strong pullup to signal something like 500 ohm would work , pullup means resistor between 5v and signal wire, and then you need to calibrate some sensor