Is there a common ground shared only between the MPG gauge and coolant temp gauge? I have a sporadic issue with these two. Sometimes they function and sometimes they don't. If I give the cluster a good whack sometimes they'll pop back into working order. I've tried swapping clusters (because my speedo and odo didn't work on the factory one) and continue to have the same issue so I'm thinking it's wiring in the car.
Where should I start looking? I can't guarantee the factory wiring is intact and solid because when I swapped head units the "splices" (if you can call them that) were horrid. Globs of electrical tape around barely hand twisted wires. However, I didn't notice any torn or chaffed wires when I did put the new cluster in but I wasn't really looking for them. Any help would be appreciated.
Where should I start looking? I can't guarantee the factory wiring is intact and solid because when I swapped head units the "splices" (if you can call them that) were horrid. Globs of electrical tape around barely hand twisted wires. However, I didn't notice any torn or chaffed wires when I did put the new cluster in but I wasn't really looking for them. Any help would be appreciated.
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