Vauxhall Corsa C P0170 Fuel Trim Bank 1

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Vauxhall Corsa C P0170 Fuel Trim Bank 1

Postby LeeT » Sun May 18, 2014 10:29 am

Hi guys, I originally had the code P0100 (MAF Sensor) so that was replaced and the car ran much better, but then I had P0170 which is fuel trim Bank 1

I have tried finding leaks in the vacuum by spraying carb cleaner on the pipes but I can't find one. The garage I bought it from told me they changed the O2 Sensor but I'm not 100% certain.

The voltage on the O2 Sensor bank 1 sways really fast between 0.000-0.900 but I have now been lead to believe that this is normal(?) The Bank 2 one stays around 0.44-0.46

I also paid for a full service and a fuel filter replacement!

I have no idea and am completely clueless

thank you.
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Re: Vauxhall Corsa C P0170 Fuel Trim Bank 1

Postby arjen » Mon May 19, 2014 5:46 pm

You can start by checking the fueltrims to find out if the mixture is lean or rich.
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Re: Vauxhall Corsa C P0170 Fuel Trim Bank 1

Postby modo » Thu May 22, 2014 8:57 am

And check freeze frame, that will give some direction.
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