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Discussion Starter #1
Vehicle: 2010 Honda Insight EX, 192k miles

Problem: Tighten Fuel Cap message came on and did not go off when fuel cap tightened. Progressed to Check Emissions System message, code p0455.

Solutions Attempted: Tightening gas cap. Replacing gas cap with generic. Replacing gas cap with OEM cap. No solutions corrected the problem.

Any ideas?
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