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MOT Emissions Failure


SurreyPaul

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1997 Elise - Failed Emissions Test

 

Fast Idle

CO = 0.44 (0.30)

Lambda = 1.753 (0.950-1.090)

 

Second Fast Idle

CO = 0.53

Lambda = 1.222

 

The MOT tester was not able to say what the likely causes of failure are/were. The car had an engine rebuild including a new CAT in February 2016.

 

Does anyone have any suggestions, please? Many thanks, Paul.

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