i have a 1992 rs camaro with a 350. it has TBI with flowtech headers and 2 1/4 inch exhaust (side pipes with glass packs). no serious mods done to it yet...air pump is gone that sort of thing but my gas, oil pressure, and temp gauges dont work...not sure why. i think my fuel sending unit is bad but i havent had the chance to make sure...any other clues?
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Have you checked the gauge fuse? Next you should try and determine if the three inops are relatedor are theyseperate issues. The easiest should be to locate the dark green wire for the temp gauge. With the key on, ground the terminal end to engine ground and see if the gauge responds. If it doesnt then the problem is probably gauge or wiring related. Also, has anyone done any dash work? There are two harness plugs that connect to the back of the instrument panel. I have seen these lose contact, then some things on the dash wont work properly.