P0420 Diagnostic Trouble Code Discussion for August 2026
Catalyst Efficiency Below Normal (Bank 1)
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| Help Request | Posted | |
| 2015 Ford Transit-250 3.2L MIL Lamp on VIN: 1FTNR2CVXF P0420: Catalyst system Efficiency beloe treshold bank1. Hello everyone! I have a transit van that belongs to a friend of mine, I usually don`t work on this vehicles and I`m just trying to help a good friend of mine so bear with me a bit. the problem with it is it does not complete the REGEN. while driving it`ll... |
August 10, 2026 |
