Nice one one Mark. I would be very much interested in the answer to your question about the DTC still being present.
I have seen so many examples of this where a cheap catalytic converter has been fitted to a cheap car in the hope of getting the emissions down. Vehicles of this vintage regardless of mileage normally need a decent catalytic converter for any hope of a fighting chance to pass the MOT Exhaust Emissions Check.
Regards
Pete M
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