Lambda Sensor Data

Lambda Sensor Data was created by HertsMini

Posted 3 years 3 months ago #196699
Hi all, just joined the forum and was wondering if any of you could help me understand some strange reading that I'm getting. Went for a drive with my Pscan plugged in recording the lambda sensor data on my MPI mini, was just looking at it and all seems ok bar these strange blips in voltage every couple of minutes. I've attached a photo to show you what I mean.

Is the sensor defective in some way? Can't really figure out why the voltage reading would be so high given the sensor is only meant to read about 1V at it's max. Any thoughts or advice would be much appreciated. Many thanks!

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Replied by HertsMini on topic Lambda Sensor Data

Posted 3 years 3 months ago #196719
Anyone?

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Replied by talkingcars on topic Lambda Sensor Data

Posted 3 years 3 months ago #196730
Hi and welcome to the forum

Sorry, it does look strange but I have no idea why.

James


Home to black Alfa Romeo 159 3.2 V6 Q4 ,green MGF VVC and red MG Maestro T16.

MG - the friendly marque.

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Replied by pscan.uk on topic Lambda Sensor Data

Posted 3 years 3 months ago #196746
There's another thread here https://www.the-t-bar.com/forum/pscan-uk-diagnostic-tool-forum/97624-pscan-diagnostic-tool in which someone said that a bad battery earth (in this case the captive nut to which the earth cable connects) caused failure of both ECU and lambda sensor. Maybe your live data glitches of 12V could be the same thing?

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