Scotty i got 91 accord and the speedometer. Works for like 2 sec then dies and my signal for the…

Scotty i got 91 accord and the speedometer. Works for like 2 sec then dies and my signal for the sports mode starts flashing what could it be and also my car says its overheating but really isnt help

try a new speed sensor if it has one, or a new speedo cable if it has a cable. As for overheating, if it isn't but shows it is, change the temp sensor

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