Hello I have a toyota corolla 2004 with the engine light flashing. I took the car to the dealership to read the fault codes.
It says P0420 catalytic efficency low.
they deleted the fault codes and I run around 50 km and the light is on again
do you have any tips how to fix this problem?
Dear askmastermechanic ,i have chinese car ,one day i tried to start it ,it start but it turned off quicly ,i taked to Repair Shop ,they changed every thing ,the battery and spark plug ,but it wont start, they said the probleme is electrical when i taked to Scanner they didnt find the probleme is electircal or mechanical ,So please if you have aly idea you help with it to tell it to the repair shop to fix my car thank you