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Fuel Trim error code

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Old Nov 4, 2007 | 08:42 AM
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Default Fuel Trim error code

Hi guys

I got an error code come up last night
Checked it on the Diablo tuner i have (thats proved handy)
Its a P0171 Fuel trim Bank 1 - system too lean

It was just after i put a full tank of petrol in - usual high grade
I suspect the fuel is duff perhaps

Ive reset the code and now its seems ok - I have also set the tune back to a factory preset, rather than then performance tune, until i can top up the fuel from my usual gas station

Does this sound like the right thing to do ?

Bare in mind that Im in the UK - so cant pop down to my local Corvette dealer !

thanks
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Old Nov 4, 2007 | 11:52 AM
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From: hill billy hell
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Sounds like the right thing to do putting it back to factory, but may not
be the problem. Just for one bank to be lean would lead me to believe
that there are other issues at hand. Possibly a vacuum leak ,or O2 sensor
problem.
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Old Nov 4, 2007 | 11:57 AM
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cheers
just took it for 5 miles - it hasn't thrown the code again since I've reset it
I'll get some new fuel in it and see how it goes

Incidently i can feel a real difference in the performance going back to the factory preset - i didn't notice much different when i first installed the Predator preset.
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Old Nov 4, 2007 | 12:05 PM
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From: hill billy hell
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Incidently i can feel a real difference in the performance going back to the factory preset - i didn't notice much different when i first installed the Predator preset.
Intresting
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Old Nov 4, 2007 | 12:07 PM
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Originally Posted by jirasvet
Intresting
I mean lower performance levels
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Old Nov 4, 2007 | 06:11 PM
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From: hill billy hell
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Old Nov 4, 2007 | 07:56 PM
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Check the fuel cap too if this just turned up since the re-fill. No other work on the car other than new fuel?
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Old Nov 4, 2007 | 08:11 PM
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Originally Posted by vettenuts
Check the fuel cap too if this just turned up since the re-fill. No other work on the car other than new fuel?
Correct - been running the same spec for 6 months
Just a refill - been out tonight in it and did about 40 miles - with no warning lights - so figure it was a glitch that's gone away (i hope)
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