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hello people, 4 days ago the check engine light lit in my car and its today that i took it for a scan and the scan revealed Catalyser faulty. the mechanic told me that this is because of the fuel quality in mauritius and i need to add aditives to my fuel tank. can someone tell me what additive is and the use and also i dnt know what is the octane level of petrol on mauritius
 

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Post cat ox sensor input to PCM and PCM logic has determined cat to have lost efficiency...
 
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