Hi All,
Can anyone give me some assistance or advice please.
I have an IS200 sport with a superhcharger fitted. The engine warning light has started to intermittantly come on. On both occasions the car has been returned to the main dealer whom have reset the ecu and it runs fine.
The fault code quoted is PO 420 which indicated an airflow or cat problem. Lexus have suggested fitting a new CAT which is mega expensive but the car is only 3 years old with 45 thousand miles. Im not convinced this is the problem.
Has anyone got any suggestions as to a solution ?.
Would appreciate any helpful comments.
Many Thanks
Martin