Quote:
Originally Posted by Grand_Monkey
A cat is not required in an MOT for a diesel vehicle or any other vehicle. A cat test on petrol car is actually only an advanced emissions test, so non cat petrol cars will struggle usually. However diesels are tested on smoke readings for the moment. I can imagine that this could change and a more advanced test will be introduced eventually. Also MOT's went up as from today to £50, plus a few pence.
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I think the more advanced test will apply when more lambda equipped diesels are about.
The lambda sensor is used to regulate the egr valve, absolving the maf of this task.
Hopefully, we've seen the end of the dreaded maf in these vehicles!
Ron