Catalytic Converters

[Guest KEITHBRADLEY]

citroen c5 3.0v6 anti pollution light on code p0420 new cats fited december then in january the same thing came up garage said that my cats had failed and needed new ones explaind that they were new ones he said ok and but some forte cleaner in and it fixed it so i think if you run forte cleaner first it might work with out new cats :lol:

[coastline taxis]

Did the garage do a emisions test before and after. if so what were the results

[techbod]

im guessing its petrol? the fault could also be wiring and o2 sensor on bank 1,

 

also check all the vacuum lines for cracks or if one has come off as this would give the same result ( lean/rich air-fuel mix ).

[Guest KEITHBRADLEY]

im guessing its petrol? the fault could also be wiring and o2 sensor on bank 1,

 

also check all the vacuum lines for cracks or if one has come off as this would give the same result ( lean/rich air-fuel mix ).

got new cats at kwik fit they did a emisions test before hand and said it was ok but the cats was still broken so i think the o2 sensor , egr , injectors were durty

[techbod]

remember the cats are covered by a warranty and its mileage and not by a 12 month joby so if they were bad when one year they have a duty to replace them,

 

if it were found the cats were ok in the beginning and it was an o2 sensor you might have a claim against kwik fit for false diagnostics.