Dave just out of interest I see your tester is using a generic limit for the lambda.

Page 126 of the 18th edition

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Not trying to be a smart Alec, but mine is always tight on the lambda with a k&n filter fitted. I take a copy of the emission book with me, just in case.

Last edited by IcePack; 19/07/26 04:28 PM.
4/4 Ivory 4.1:1 axle, Mercedes A200 AMG