Had a small bump under my car corolla 2010 which led to my exhaust making noise. Took the car to mechanic they said packing BTW manifold and exhaust was the problem. There and then they removed the exaust and changed the parking noise stopped. Following day check engine came, scanned and it says catalyst bank 1 was faulty. My mechanic suggested catalyst is blocked. Loosed exhaust poured water it went through he said its not blocked maybe catalyst is cracked inside from the impact and suggested to buy another one. I am not convinced the catalyst is faulty cos the impact was minor. I feel air isstill leaking between the manifold and exhaust now my fuel consumption is very high. What can I do please to resolve this (ps my car has never had catalyst issue in 3 years now

Seal every leak first

Judejibs:
Had a small bump under my car corolla 2010 which led to my exhaust making noise. Took the car to mechanic they said packing BTW manifold and exhaust was the problem. There and then they removed the exaust and changed the parking noise stopped. Following day check engine came, scanned and it says catalyst bank 1 was faulty. My mechanic suggested catalyst is blocked. Loosed exhaust poured water it went through he said its not blocked maybe catalyst is cracked inside from the impact and suggested to buy another one. I am not convinced the catalyst is faulty cos the impact was minor. I feel air isstill leaking between the manifold and exhaust now my fuel consumption is very high. What can I do please to resolve this (ps my car has never had catalyst issue in 3 years now

Were you there when the mechanic worked on your car? Or you dropped the car with them?

Don't buy any catalytic converter yet. Do your research properly

I stayed while they did all work.

Dozieson:



Were you there when the mechanic worked on your car? Or you dropped the car with them?

Don't buy any catalytic converter yet. Do your research properly

They claim no hole as far as engine sound is normal

incogni2o:
Seal every leak first

Judejibs:
I stayed while they did all work.

Just be using the car like that for now. Keep observing it

I have used it for 2 weeks now after clearing the fault it always comes back

Dozieson:


Just be using the car like that for now. Keep observing it

Judejibs:
I have used it for 2 weeks now after clearing the fault it always comes back

most times nairalanders use O2 spacer to remove the code
you can search for O2 spacer here on nairaland