DIY Catalyst/O2 Sensor Replacement

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DIY Catalyst/O2 Sensor Replacement

D3 - Fuel and Exhausts Everything to do with getting fuel into the engine, and fumes back out again

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28th April 2014, 10:40 AM

Bisonhead

Junior Member

Join Date: Feb 2014

Location: Hants

Posts: 14

Quote:

Originally Posted by mannyo

IIRC The cat below efficiency error starts cropping up when the cat is 94% efficient and triggers the engine light. Even with the light on and the fault code the car should breeze through the MOT. Check the air filter to make sure its not clogged up.

Will do, thanks. It is an ex-london car so probably needs a good de-smog anyway

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