Carltaff
Member
Hi All,
have recently changed my cat after getting the P0420 code come up , went for a sports cat after pricing compared to audi, (cat was gone).
Car was fine for a few days but upon my return from rally GB last week the same code came back on, 2 1/2 hours of driving back at 60-70mph.
Could it be the lambda sensor on the new cat? or would you be thinking exhaust leak? (cannot hear a leak)
Many thanks
Carl
have recently changed my cat after getting the P0420 code come up , went for a sports cat after pricing compared to audi, (cat was gone).
Car was fine for a few days but upon my return from rally GB last week the same code came back on, 2 1/2 hours of driving back at 60-70mph.
Could it be the lambda sensor on the new cat? or would you be thinking exhaust leak? (cannot hear a leak)
Many thanks
Carl