Guage Installation Question

[Dkevdog]

I am slowly and finally getting around to finishing the installation of some guages in the truck. I am installing some of them in a center console (temp guages- all electronic) and need to be able to remove the console easily for service if necessary.



Question is: I was going to use a multipin "Molex" style wire harness to do the trick. Sending wires and power wires will run through it. Will this cause any problems in the resistance to the guages ? I know it could cause problems with EGT, but they are going elsewhere. Anyone see any problems with this??



TIA!!



Kev

 

[Ethdee]

It will be no problem at all. You could even run the EGT wires through a connector, but I'd avoid the Molex ones (the kind with the circular mini-banana pins). Anything less than a perfect connection will affect the gauge. I think the connectors that RC cars use for the motor (a large copper surface that slides by the mating surface) would work fine. As I recall, you can gang them, too. Much bigger than a Molex connector, but trouble-free.



Now that I've said that, I used automotive bullet connectors for my gauge power, and installed the thermocouple extension wires with no splices all the way to the switch. My gauge had 1/4" spade lug connections, so I used some good quality 1/4" female spade connectors to make the connection. I used 0. 110" female spade connectors at the switch (the switch chooses pre- or post-turbo). I've got about 5000 miles on my installation right now. I won't recommend the push-on connectors until I have 25k or so.



My other two gauges are mechanical.



Jim