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P1410 on GM vehicles indicates that the powertrain control module has detected a fault within the fuel tank pressure system, which is the evaporative emission control subsystem responsible for sealing and monitoring the fuel tank. The computer typically sets this code when the fuel tank pressure sensor signal or the tank pressure control solenoid circuit does not behave as expected during a key-on or running self-test.
Guidance is general and written for GM vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.
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