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Old 10-02-2019   #16
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Re: Punto 04 Activate chugging/excessive fuel consumption

Ideally you want one that plugs into your laptop Bluetooth or usb. So you can use the fiat multi scan software. Get one of eBay for 5£ I posted a link a few weeks ago which one I got.

But be aware diagnosing a lambda from obd reading is super hard unless you know what a working one should look like.

What values are right or wrong I don't have a clue!
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Last edited by puntoFix; 10-02-2019 at 22:58.
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Old 11-02-2019   #17
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Re: Punto 04 Activate chugging/excessive fuel consumption

Hi, I checked the codes and have code P0130 01/01 - i looked it up "02 sensor circuit malfunction (bank 1 sensor 1) - i take it this is the lambda sensor? Many Thanks
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Old 11-02-2019   #18
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Re: Punto 04 Activate chugging/excessive fuel consumption

Sorry - replied to the wrong thread! Apologies
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Old 11-02-2019   #19
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Re: Punto 04 Activate chugging/excessive fuel consumption

No i didn't reply to wrong thread! Duh - dunno what happened there
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Old 11-02-2019   #20
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Re: Punto 04 Activate chugging/excessive fuel consumption

Sounds like you got a bad sensor then!

https://www.fiatforum.com/punto-ii/4...es-lambda.html
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Old 11-02-2019   #21
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Re: Punto 04 Activate chugging/excessive fuel consumption

Hi - yes it does! There is only one lambda sensor - is that correct?
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Old 11-02-2019   #22
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Quote Originally Posted by robt View Post
Hi - yes it does! There is only one lambda sensor - is that correct?
Normally 2 ...
either side of the cat.
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Old 11-02-2019   #23
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Re: Punto 04 Activate chugging/excessive fuel consumption

Thanks - Yes - i've just read that the front manifold one is the important one - quote "Under normal circumstances, the rear sensor does not have any direct impact on the fuel mixture (and therefore the running and emissions of the engine)
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