Question about gauges
Thank you
Thank you for the knowledge!
The first terminal strip has the illumination power and ground landed to the top, each of which is jumped to two adjacent terminals for a total of three hots and three grounds. These feed the LED illumination for the three gages, and since I took power from the dash illumination circuit the gages dim with the dash control. Each gage wire is landed on a seperate terminal, this keeps things neat and looks like a professional install.
The second terminal strip has the +12VDC feed and grounds for the stepper motors of the tranny temp and EGT gages. This strip also has the input wire to the tranny temp gage landed on it, with the feed from the selector switch coming in at the top.
The gage wires are very small, I'd say about 20AWG. I used 12AWG for the ground so I just jumpered from the stepper ground over to the illumination ground terminals. Coming off the top of the terminal strips and going under the dash, I used quick connects. This way if I wanted to completely remove the whole gage pod I would only need to disconnect the boost gage tubing and unplug the wiring. The wires are color coded and I used a different style connector for each to avoid hooking things up wrong.
Now on to the selector switch... Behind the fuse panel cover I again used the double sided tape to mount another six land terminal strip. I used a two pole six position rotary switch from Radio Shack for my selector switch. I soldered six green wires to the switch terminals and one purple wire for the contact for each pole. The six input wires were landed on the bottom of the terminal strip in the correct order. I used a meter to verify this before cutting them to length and landing them on the terminals. On the top the various inputs were landed, front diff, tranny, rear diff, and coolant. Right now there are two open terminals, one of which will be used for the oil temp input wire.
I am considering using the second pole to power indicator lights or LEDs to tell which position(parameter) the switch is set to. In that case I would run power to the purple wire and the green wires would each go to a different light or LED. I could just set them in a row or maybe come up with a cute little graphic of a truck and have the indicator set up to backlight icons for the diffs, tranny, coolant or oil.
As far as the switch goes, I drilled a hole through the dash. It sits about two inches above the top right corner of the fuse panel cover and about three inches to the left of the top left corner of the cubby(which is right above the gage pod). It is just to the right of what looks like a small vent in the dash. I wish I had pics but alas.... such is not the case, hence the long winded description. I hope this helps.
The first terminal strip has the illumination power and ground landed to the top, each of which is jumped to two adjacent terminals for a total of three hots and three grounds. These feed the LED illumination for the three gages, and since I took power from the dash illumination circuit the gages dim with the dash control. Each gage wire is landed on a seperate terminal, this keeps things neat and looks like a professional install.
The second terminal strip has the +12VDC feed and grounds for the stepper motors of the tranny temp and EGT gages. This strip also has the input wire to the tranny temp gage landed on it, with the feed from the selector switch coming in at the top.
The gage wires are very small, I'd say about 20AWG. I used 12AWG for the ground so I just jumpered from the stepper ground over to the illumination ground terminals. Coming off the top of the terminal strips and going under the dash, I used quick connects. This way if I wanted to completely remove the whole gage pod I would only need to disconnect the boost gage tubing and unplug the wiring. The wires are color coded and I used a different style connector for each to avoid hooking things up wrong.
Now on to the selector switch... Behind the fuse panel cover I again used the double sided tape to mount another six land terminal strip. I used a two pole six position rotary switch from Radio Shack for my selector switch. I soldered six green wires to the switch terminals and one purple wire for the contact for each pole. The six input wires were landed on the bottom of the terminal strip in the correct order. I used a meter to verify this before cutting them to length and landing them on the terminals. On the top the various inputs were landed, front diff, tranny, rear diff, and coolant. Right now there are two open terminals, one of which will be used for the oil temp input wire.
I am considering using the second pole to power indicator lights or LEDs to tell which position(parameter) the switch is set to. In that case I would run power to the purple wire and the green wires would each go to a different light or LED. I could just set them in a row or maybe come up with a cute little graphic of a truck and have the indicator set up to backlight icons for the diffs, tranny, coolant or oil.
As far as the switch goes, I drilled a hole through the dash. It sits about two inches above the top right corner of the fuse panel cover and about three inches to the left of the top left corner of the cubby(which is right above the gage pod). It is just to the right of what looks like a small vent in the dash. I wish I had pics but alas.... such is not the case, hence the long winded description. I hope this helps.
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