All of my gauges were going crazy and sometimes they would work then go crazy, then flick and go out completely until I shut the car off and restarted it. There was a point that they worked fro like a week straight and then started again. There was also another point where they were out for like 3 weeks until I jacked up the front end and then they started going crazy again. The only two that never acted up were the tach and the speedometer. I would say you need a cluster if you tried all the other tricks. I have just over 2 hundred miles on my remanufactured one with not a single glitch.
1993 Bonneville SC SSE With Supercharged Badges, Black and Gold, CAI, 180T, TR-55'*, 2.2 Pulley, Jet Stage 2 Chip, Ceramic coated PEM'*, Magnaflow, Flowmaster 80, Megs Tips.
1995 SLE (Wifes), White and Gold, CAI, APN, Magnaflow, otherwise stock.
1966 Ford Ranchero, 312ci 60 over block decked, GT40P heads Milled, RPM Air Gap intake, Holley 600, MSD Billet Dist., 6A Box, FlowTech Shorties, C-4 W/Shiftkit, 8" 4.11