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P20F1 – FORD

Code : P20F1
Make : FORD
Description : P20F1 FORD SCR NOx Pre-Catalyst Over Temperature Bank 2
Possible causes :
– Faulty NOx Sensor
– Diesel Exhaust Fluid
– Faulty Selective Catalyst Reduction (SCR) Catalyst
Solutions :
– Carry out a Reset via CarDiag
– Choose a better quality fuel
– Check that the tank cap is securely closed
– Check the oil level and add more if it is lower than MAX
– Restart an Automatic diagnostic via CarDiag
– If the fault persists, you can check the “Possible causes” listed above : visually inspect (by yourself (tutorials to come) or by a professional) the wiring harness and the associated connectors, check for damaged components, and look for broken, bent, pushed, or corroded connector pins.

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