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    Re: Mercedes E240 V6 (2001) Cat efficiency Archived Message

    Posted by Dave Hill on June 18, 2007, 8:25 pm, in reply to "Mercedes E240 V6 (2001) Cat efficiency"

    Hi Alan & Martin

    I have a four-channel scope, but on this occasion I decided it was unnecessary to capture all four sensors as the fault codes pointed toward both cats being inefficient. Also, this job is a freebie for a mate & a learner for me .

    These captures are taken from the offside bank only. The last capture shows a reduced switching frequency because it was at idle & is quite normal.


    Martin wrote >>>I would send them back under warranty<<<

    Funny you say that Martin, as I suggested from the start, that he should put the ball in their court (Euro Car Parts). Still, it has been interesting to see it unfold.

    I was quite impressed with the imaginative thinking of the “Jag Man” with the idea of fitting a single lambda sensor behind the rearward cat (this has three cats by the way).

    Cheers for now

    Dave (Hill)

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