Adjustable 10K Mod

[pdt1081]

For those who've done this, does anybody have a part number for the potentiometer that you used? Also, what power rating (in watts) is needed for the potentiometer. I plan on a 4.7k ohm resistor in series with a potentiometer. This will hopefully keep me in a "safe" level of resistance.

 

[pdt1081]

Ok, I've figured out how I'm going to do it (more on that after I build it), I just need to know the voltage the ICP sensor has so I can add an LED to let me know when it's on. Anybody know what this voltage is?

 

[Ford_Forgotton]

You wont be able to get an LED to work off the ICP voltage. Its 0 to 5 volts, but mostly around the 1 to 2 volt range.

Get a DOUBLE POLE switch. One pole will be your 10k mod, and the other pole will be a simple on/off with 12v on one side, and your LED on the other. Use resistors if you dont use 12v rated LEDs.

There is very little wattage used on the ICP circuit, so a circuit level potentiometer of 1 watt or so should be more than enough.

 

[pdt1081]

Thanks. I bought a double pole switch, but I think for now I'm going to do without the LEDs. I may eventually add them, but for now I'm just going to see how it works. Once I get it all done and get my gauges installed, I'll post how I did it and how it works.