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The downstream O2 sensor produces a relatively steady voltage reading of approximately 0.45V if the catalytic converter is functioning properly.
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#FORD DIAGNOSTIC VALVE SOFTWARE#
Simply connect the scanning tool (or a computer with scanning software downloaded) to the connector (located under the steering wheel) and the readout will show you Diagnostic Trouble Codes that might be.
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Examine the exhaust system for damage and leaks. Exhaust pressure control valve malfunction: Open/grounded ckt. Every Ford truck comes equipped with an OBD connector which can be used to send messages to an OBD2 troubleshooting reader like the one below.If other codes are present, they must be addressed first.
#FORD DIAGNOSTIC VALVE CODE#
Scan your Ford to verify P0420 is the only code present.Ford P0420 Diagnosis Tools Needed to Diagnose: If any other codes are present, they should be addressed first. Ford Code P0420 Common Diagnosis Mistakesĭo not overlook other codes that are paired along with P0420. It is recommended that you address P0420 as soon as possible to keep the cost of the repair to a minimum. Description of OBDII Drive Cycle The following procedure is designed to execute and complete the OBDII monitors and to clear the Ford P1000, I/M readiness code.
#FORD DIAGNOSTIC VALVE DRIVER#
While P0420 does not pose a danger to the driver and may not produce any symptoms with issues related to drivability, it can cause severe damage to other components of your Ford if not addressed in a timely manner. Outlet Valve Left Rear 50506Short to Ground B 1.1 Inlet Valve Right Rear 45453Short to Bat B+ 1.1 Inlet Valve Right Rear 45455Open Circuit 1.1 Inlet Valve Right Rear 45456Short to Ground B 1.1 Outlet Valve Right Rear 51513Short to Bat B+ 1.1 Outlet Valve Right Rear 51515Open Circuit 1.1 Outlet Valve Right Rear 51516Short to Ground B 1. Also see this page EEC IV Diagnostic page for more Ford information.