My ignition module had blown out, and now the
temp gauge is not working. It pegs itself when you start the car, but then it just settles down to 100 degrees, and does not move, other than when you shut the car off and it goes back down all the way.

I replaced the sender, and also replaced a 2 foot section of the wire where it plugs into the sender, cause it fell on the headers and melted.
Could I have fried the gauge when the module blew, or even when the wire melted, or is there something else I may be missing?

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My 89 Formula
13.98 @92 mph 2.06 60 ft
1989 Firebird Formula, WS6 Package, ZZ4 Crate engine.
MSD 8.5mm Super wires, SLP 58 mm throttlebody, Edelbrock TES headers, SLP 3" SS exhaust,
Random Tech 3" hi flow cat, K&N filter, 700R4 trans w/ vette 2/4 shift servo, worked valve body, kevlar band,
2200 rpm stall converter, Borg Warner 9 bolt 327 rear (full poly mounts) Hotchiss panhard rod, Lakewood LCA's,
Spohn subframe connectors, custom chip, Walbro hi-flo fuel pump.
Accel stuff: 24 pound injectors, Superram intake, Large tube runners, billet distributor, supercoil.

 

Nobody has any ideas?

 

Try a new gauge..very cheap at a boneyard.

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1989 IROC-Z 5.7L
NOS 5151 150HP kit
ProBuilt 700R4, PI Vigilante 2800 stall lockup
Baer Brakes 12" Sport System