Thermostat housing re-wiring tip!

SrBigbutt

New Member
Apr 26, 2009
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Spring, TX
Like many others, the wiring on my Supra sucks! The wires are brittle and connectors are breaking or completely broken off! Especially around the thermostat housing. My cold start switch and ECU coolant sensor plugs are in horrible shape. The coolant sensor plug kept falling off causing CEL Code 22.

Finally decided to take those crappy plugs off and replace them with some spare injector clips that I had gotten for my 280z. They are the quick disconnect type. No more messing around with the little metal clip. Now I can just squeeze it and take it off. Awesome!! haha.

They sell these clips all over ebay, but I highly recommend getting them from a junkyard. I got mine off some latel model fuel injected Volvo's!! They were in great shape. Makes you wonder how some of the cars at the junkyard have better wiring than I do!! :3d_frown:

Here is a pic...
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deabionni

The Lurker
Sep 16, 2007
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Kalkaska, MI
^^^ Why would you cut the harness to add a new connector? Just use a de-pinning tool to remove the wires from the old connector, and clip them in place in the new connector. (Assuming the original wires are in good shape).

I'll never understand the mentality it takes to hack up a harness to put on a different connector. :nono:
 

SrBigbutt

New Member
Apr 26, 2009
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deabionni;1412207 said:
^^^ Why would you cut the harness to add a new connector? Just use a de-pinning tool to remove the wires from the old connector, and clip them in place in the new connector. (Assuming the original wires are in good shape).

I'll never understand the mentality it takes to hack up a harness to put on a different connector. :nono:

I cut the harness, because it was in terrible shape. The pin broke at the wire when I touched it. Not worth de-pinning! Plus they were nasty looking and corroded. It was much easier and cleaner to cut the old connector off and solder the new pigtail in its place.
 

TurboStreetCar

Formerly Nosechunks
Feb 25, 2006
2,778
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Long Island, Ny
deabionni;1412207 said:
^^^ Why would you cut the harness to add a new connector? Just use a de-pinning tool to remove the wires from the old connector, and clip them in place in the new connector. (Assuming the original wires are in good shape).

I'll never understand the mentality it takes to hack up a harness to put on a different connector. :nono:

And if the pins from the Toyota connector dont fit the new connector then what? Cutting off the plug and properly crimping new/correct pins onto the newly fresh exposed wires would be hacking up a harness? :nono:

I ask because the sender has the plug molded into it, curious how you changed the connector on the sender, or if that connector was left on and the new connector spliced in between.
 

SrBigbutt

New Member
Apr 26, 2009
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nosechunks;1412389 said:
And if the pins from the Toyota connector dont fit the new connector then what? Cutting off the plug and properly crimping new/correct pins onto the newly fresh exposed wires would be hacking up a harness? :nono:

I ask because the sender has the plug molded into it, curious how you changed the connector on the sender, or if that connector was left on and the new connector spliced in between.

I did not change anything on the sender itself. The old connector and new connector are the same, except the new one has the metal clip built into it. All you have to do is squeeze it. No more laying on the floor looking for the metal clips. Many manufactors use the same type connectors for various sensors, switches, injectors, etc...

So to recap, all I did was cut the old connector off (two wires) and then soldered the new connector onto the existing harness. Nice and neat with heat shrink tubing.