Search results for query: *

  1. T

    Error codes P0421 & P0431

    Yeah can you send me the link please. Thanks JPS How long have you had the sensor extenders fitted?
  2. T

    Error codes P0421 & P0431

    Hey guys Need some help. New Audi S5 owner here (2008, 4.2 V8, 110K, FASH). Love the car but having trouble with vehicle emission light coming on within 3 days of having it. Error codes are showing as P0421 Warm Up Catalyst Efficiency Below Threshold (bank1) P0431 Warm Up Catalyst...
Top
Back