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To repair a P1191 fuel pressure sensor circuit low input issue on a Vauxhall Vectra, first, inspect the wiring and connectors for any damage, corrosion, or loose connections that could affect the sensor's signal. If the wiring is intact, test the fuel pressure sensor itself using a multimeter to check for proper voltage output; replace the sensor if it's faulty. Additionally, ensure that the fuel pump is functioning correctly and that the fuel system is not experiencing any leaks or blockages. Clear the error code and conduct a test drive to verify the repair.

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3mo ago

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