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P0446 code not going away
09 Chevy Tahoe with about 160k miles. CEL came on for P0446 and fuel cap, vapor canister purge valve, and vapor canister vent valve have all been replaced. Now leaning towards a fuel tank pressure sensor but unsure of the readings I’m getting. Hooked up a scan tool and have readings of .274...- barcelonaleo
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- Forum: Engine & Drivetrain
