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Code P0420 Ford Expedition - YouTube
Ford edge p0202: injector circuit malfunction → cylinder 2
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Code P0420 Ford Expedition - YouTube
FORD FIX CODE P0420 CATALYST SYSTEM EFFICIENCY ANY FORD - YouTube
Ford Edge P0202: Injector Circuit Malfunction → Cylinder 2 | Drivetrain
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P0420 Catalyst System Efficiency Below Threshold Bank 1 - Ford Fiesta