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Which PID for Cat Efficiency?


EvansJD2112

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After having HFCs fitted, I get the engine warning light coming on.

I have OBD Fusion installed on my tablet but not sure what PIDs I need to moniter the CATs

nor what the threshold is that determines when the light comes on.

 

Anybody know?

 

Thanks

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I'm not 100% sure but on most cars with EOBD 2 will trigger a cat efficiency code if the rear lambda sensor is switching between rich and lean to often (because the cats not doing its job).

I had the same problem on my old CTR, you can buy mini cats that fit in between the lambda and the boss in the exhaust but a proper fix would be a remap?

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