SimonB Posted May 23, 2011 Share Posted May 23, 2011 I've taken out my stock dials and put a race technology dash2 in their place, my new setup is all working fine apart from my low fuel warning light which for some reason is always on. It's basically an led wired into the same place as the stock bulb. The fuel level is working ok - that's wired in to one of the dash2's analogue inputs via a 100ohm pull up resistor and gives a sensible reading with a full tank. Can someone tell me if the low fuel light comes on when you turn the ignition on before starting along with all the other warning lights? Anyone with an aftermarket dash had this problem? Quote Link to comment Share on other sites More sharing options...
imi Posted May 23, 2011 Share Posted May 23, 2011 It's basically an led wired into the same place as the stock bulb. Hi Simon, I have a Dash2 as well, not sure what you mean by the above. The fuel level is working ok - that's wired in to one of the dash2's analogue inputs via a 100ohm pull up resistor and gives a sensible reading with a full tank. Can someone tell me if the low fuel light comes on when you turn the ignition on before starting along with all the other warning lights? Anyone with an aftermarket dash had this problem? if the fuelling equation is correct then your fuel reading should be fine. in my case I have set the low fuel warning threshold to 10%. what is yours set to? and no, the fuel warning message DOES NOT come on when going through the starting procedure. Quote Link to comment Share on other sites More sharing options...
SimonB Posted May 24, 2011 Author Share Posted May 24, 2011 What I did is use a separate stand-alone LED wired to the two wires that turn on the orange low fuel warning bulb on the standard dash. One is at 12V all the time, the other is switched to ground by the fuel sender by a separate low fuel warning sensor in the tank I think. Basically there are 3 wires going to the fuel sender in the tank, ground, fuel level and low fuel warning. The fuel level one I have teed via a resistor into the +5V reference on the dash2 and into the analogue input. The low level one goes to the -ve of my led and +12v goes to the +ve. Must admit I never thought of just using a low warning threshold on the dash2 rather than a separate light! If I can't figure out why it's on all the time I might just do that. I was asking if on a standard car the low fuel warning comes on with the ignition - just because it's easier to test if I don't have to keep starting the engine all the time. Quote Link to comment Share on other sites More sharing options...
imi Posted May 24, 2011 Share Posted May 24, 2011 Must admit I never thought of just using a low warning threshold on the dash2 rather than a separate light! If I can't figure out why it's on all the time I might just do that. Far easier on the DASH2, set the threshold to your liking and it will flash the LEDs for whatever time you want (mine flash for 20 secs) - I do have an override switch to shut them up Quote Link to comment Share on other sites More sharing options...
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