how to connect a coolant gauge with pics?

[RayBan GST]

i just bought today a coolant gauge and want to know where these three wires go , i know there should be two for power and one for the sensor but which one and which color also when i connect the sensor to my blitz upper rad hose how many wires should go to the sensor??? should there be a ground for the sensor?? and how to connect these wires to the sensors shall i weld them?? or what?




thanks

 

[DeadsEvolution1]

Correct me if I'm wrong but I only see 3 wires. 1 12v power, 1 ground , and the green is the one that connects to the sensor.

 

[slinarez25]

Well if it came with directions that might help. But if not the wires should be:
Red=power supply
Green=goes to the sender
Black=ground

Look at the sender and if there is 2 places for wires to connect to they should be labeled and one should be the ground, but if there is only one place then thats for the sender wire (green) and just ground the black wire to something connected to the chassis. Hope this helps, if you need clarification let me know.

 

[RayBan GST]

so i have to ground the black wire twice?? once inside te car for power ground and once outside next to the sensor ??? i will put my sensor in the radiator hose it way far i have to have a long wires , i hope thy wont melt.

 

[jjrock5]

Yeah you have to lengthen the signal wire to the gauge and two grounds need to be made. Very simple.

 

[RayBan GST]

thx man just one question for my own knowledge why should there by two grounds? and where shall i connect the second ground that is for the sensor?? on the radiator for example? sorry but iam really not good in electric stuff

 

[jjrock5]

Well the ground on the sensor is for the load that the sensor will undergo, it's essentially still a circuit just like a light. If I remember correctly, you have that weird coolant hose with the adapter on it correct? If so, then I would simply ground it the rad. mounting brackets or to the engine itself. Theyre both close. As far as the second ground, this is for the light bulb in your gauge.

 

[slinarez25]

No the radiator wouldnt be a good ground. Just find a bolt in the engine bay that isnt on your engine and loosen it a little bit, put the wire under it, then tighten it back down. There, youre grounded. But make sure you even need to ground it twice, because you might not have to.

 

[johnmarines]

Would the sensor ground itself when you install it?