i was taking a loose heat shield off from underneath my 1994 wrx turbo and it wasnt budging. i smacked it off with a hammer but in doing so, i accidently smacked the lambda sensor (the one that sits in the exhaust manifold) and subsequently damaged it. as i got back into my car and started it, the cat light switched on, on my dash.

i have changed the lambda sensor for a new one, but the light is still on.

have i done anything wrong in diagnosing my problem?

somebody told me that the ecu stores this error code and needs resetting, but i dont know.

please can somebody help me in turning that cat light off....

 

Try taking the battery off for 30 min that should reset your ecu there are other ways but you have to drive it

 

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