2005 C180 K Lambda signal help - Mercedes-Benz Forum

 
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post #1 of 1 (permalink) Old 04-14-2011, 10:31 AM Thread Starter
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Date registered: Feb 2011
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2005 C180 K Lambda signal help

Hi there,

Got a 2005 c180K running poorly and over fuelling.
I scoped the pre cat lambda sensor (a broadband sensor) - car fully warm and at idle.
The broadband sensor does not seem to run in closed loop - i.e. does not start switching and outputting an oscillating signal as per normal lambda response.

Anyone know what the deal is here? I should expect to see a switching waveform, albeit not between 0 and 1V right?

Any info here would be great.

Cheers,

Adam

PS - Does anyone know where can get reference figures for stuff like 'burn time' and 'injector pulse duration' for various vehicles.
terrance85 is offline  
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