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Polaris ATC 500 ECM cooked


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I know I haven't posted in a while but my brother has an issue with a fried ECM in his 2005 Polaris ATC. The ECM isn't available anymore anywhere and I can't find wiring diagrams to compare another ecm to see if it'll work.

Is there an ECM from another model from another year that will work? It is a carbureted model. The ECM controls the electrical system.

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