Temperature gauge wiring fix

[ericjon262]

Can anyone describe what is required to fix the coolant temperature gauge wiring so the gauge doesn't peg when the key is turned to start? I have my dash apart and would like to fix it now instead of pulling things back apart later, but I can't seem to find what exactly needs to be changed...

Thanks-

Eric

[pmbrunelle]

http://gafiero.org/temp_gauge_repair.shtml

[The Dark Side of Will]

Dammit... I did this and I'm pretty sure I posted it someplace, but now I can't find it.

I swapped C2 & D3 on the *CHASSIS* side of the C500 connector, then swapped the pins at the instrument panel end. Because they're on different connectors at opposite ends of the cluster, I had to lengthen the wires and run them back across each other. If I had felt like taking the dash out for better harness access, I could have done it seamlessly, but oh well.

I did all the mods on the chassis side so that I could wire any engine harness up the way the book shows and not have to remember to change it.

[pmbrunelle]

I keep a folder of schematics of the wiring modifications to my Fiero, to avoid having to rely on memory.

Minor changes I document by printing out the relevant schematic page, and then annotating it by hand.

For more major changes that are poorly described as a delta relative to stock, I simply create schematics from a blank sheet of paper.

For the temp gauge pegging fix, I followed the gafiero/fierosails guide to the letter, so that's what I printed and stored away in my wiring mods folder.

[Shaun41178(2)]

Why do people get so frustrated and want to change this? Why is the pegging issue such a big deal? I dont get it.

I dont mind it. It means my gauge isnt stuck

[The Dark Side of Will]

Because in some cases, like my own '88 the Storm Trooper, repeatedly hammering the needle against its stop over the service life of the gauge breaks the needle off.

[ericjon262]

Thanks everyone, I appreciate the help.