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polo 1ltr lambda - jazz
hi i have a vw polo 1ltr mpi engine type AER .i have just put the engine in the car with the ecu a new cat pipe
and lambda sensor .the head gasket has been replaced and exaust to manafold gaskets but despite having done all this work i cant get it through the mot gas emmisions test it keeps failing on lambda can any one
polo 1ltr lambda - Screwloose

Can you post the figures; both natural idle and fast idle. CO; HC and Lambda. Are there any exhaust leaks - even slight ones?

Where did the cat come from? Do you have any means to access live data; or a voltmeter?

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