Quote:
Originally Posted by bob13
Has anyone removed there catalyic converter and had problems at MOT time. I have a 1991 440. I have read somwhere that the MOT test stations have a set limit for a type of engine and if a cat was fitted when built it may not get the correct emmisions, so would mine pass or fail ?
All the best bob.
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Hi Bob, your cars CO output must be less than 3.5% and the HC less than 1200ppm, lower emissions came out in August 92 and the requirement for all manufacturers to fit cats on new cars. There is no such thing as a cat test in the MOT only emissions tests which must be met. If your engine is up to spec and running normally you don't need the cat to pass your mot.