Mazda 2 - Lambda reading at MOT

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Fri 26 Feb 2016 15:29
Mazda 2 - Lambda reading at MOT - NorthBear

My 60 registration Mazda 2 with 44,500 miles passed this morning with no advisories, but I noted increases in 3 readings in particular, from the Fast Idle section:

CO 0.12% (2015: 0.02%)

HC 42ppm (2015: 27ppm)

Lambda 1.03 (2015: 1.00)

Do these changes suggest anything significant?

NorthBear

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Fri 26 Feb 2016 18:03
Mazda 2 - Lambda reading at MOT - elekie&a/c doctor

Yes,impending engine failure,sell car at once! On a serious note,nothing to worry about.Keep driving and think about next years mot figures.

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Fri 26 Feb 2016 19:08
Mazda 2 - Lambda reading at MOT - jc2

Catalyst losing a little efficiency but still legal.

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