MOT Fail - Emissions - Probably Cats

		A8 Parts Forum > A8 D3 > D3 - Fuel and Exhausts
MOT Fail - Emissions - Probably Cats

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

10th April 2018, 07:49 PM

Mechcanico Lee Mechcanico Lee is offline

Senior Member

Join Date: Jul 2015

Location: St Helens Haydock

Posts: 434

Can you post all gas readings off print out

Are pre cat Lamdas 5 wire wide band ?

What is short term fuel trim doing at idle and at say 2500 rpms

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