The P0420 code signals a low catalyst system efficiency. This code suggests that the oxygen levels are below the desired threshold (Bank 1), which most often results from problems with your car

But before attempting any fixes to resolve the codes retrieved by your scan tool, it’s important to know exactly what they mean. Code P0882 is one of many trouble codes that may be logged and retrieved from the OBD system. Here is some basic information that may help you understand what this code may mean for your vehicle.

Since about the 2000 model year, Ford has incorporated a handy feature into most of their vehicles, including the Escape. It is a digital self-diagnostics mode that uses the odometer display & instrument cluster to show vehicle information. Insert the key into the ignition switch but don't turn it ( just slide it in ).
Service Engine Soon – Other than the heater not working, the only other symptom of P0128 is typically the service engine soon light itself. Slight Decrease in fuel economy – The P0128 code may also lead to a slight decrease in fuel economy. This is because your Focus’s engine is running at a cooler temperature than it should be.
Faulty fuel injector. Vacuum leak. Low fuel pressure. Camshaft and/or crankshaft sensor defective. Engine timing off. Leaking head gasket. Low engine compression. Poor quality fuel that is old or contaminated. P0300 is not one of the top 5 trouble codes for the Ford Focus but, it is still a common one.
Ford Focus 2013, “transmission fault service now” message and p0606 code after battery died. The engine code went away - Answered by a verified Ford Mechanic We use cookies to give you the best possible experience on our website.
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  • how to check ford focus fault codes