sleeperphNov 2, 2022 P0430 - "CAT Efficiency Below Threshold, Bank 2" Good morning. I have a 2004 Taurus with the Duratec engine. I had all 3 cats replaced about 25000 miles ago. Today I get the above code, P0430. I am reading on other posts on this forum that the cat is failin...
P0430 – Catalyst System Efficiency Below Threshold (Bank 2) Indicates Bank 2 catalyst system efficiency is below the acceptable threshold. Use of leaded fuelDamaged HO2SMalfunctioning ECTHigh fuel pressureDamaged exhaust manifoldDamaged catalytic converterOil contaminationCylinder misfiringDownstream HO2S ...
System to Lean (Bank 2) The Adaptive Fuel Strategy continuously monitors the fuel delivery hardware. The test fails when the adaptive fuel tables reach a rich calibrated limit. See Possible Causes for DTC P0171. See Diagnostic Aides for DTC P0171 P0175 Error Description System to Rich (Bank ...