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 1995 Buick Rivera scan codes P0171 fuel trim lean, P1406 EGR Pintle postion

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ejeraser
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Name : Eric
Joined : 2011-05-26
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PostSubject: 1995 Buick Rivera scan codes P0171 fuel trim lean, P1406 EGR Pintle postion   Thu May 26, 2011 2:33 pm

I have a 1995 buick rivera with 169K on it, I am getting codes P0171 Fuel Trim Lean and P1406 EGR Pintle Postiion Sensor Circuit. Does anyone know what these mean and how I could fix them.
For code P1406 I opend up the EGR and cleaned it out. Would this help? For the P0171 fuel trim lean I am lost as to what needs to be done to fix this. If anyone could help it would be awesome!!
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BMD
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Name : BMD
Location : Canada
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PostSubject: Re: 1995 Buick Rivera scan codes P0171 fuel trim lean, P1406 EGR Pintle postion   Thu May 26, 2011 3:28 pm

Hey Eric, welcome. In the future try the "search" function, theres lots of great info there.

Try this ....
http://rivperformance.editboard.com/t6354-code-p0171-lean-condition-solved-dirty-maf-sensor?highlight=P0171
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Karma
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Name : Andrew
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PostSubject: Re: 1995 Buick Rivera scan codes P0171 fuel trim lean, P1406 EGR Pintle postion   Thu May 26, 2011 3:55 pm

... and for your EGR code, often they don't respond to cleaning and just need to be replaced.

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Abaddon
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Name : Scott
Location : Macomb, Michigan
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PostSubject: Re: 1995 Buick Rivera scan codes P0171 fuel trim lean, P1406 EGR Pintle postion   Thu May 26, 2011 5:06 pm

Another note.......if your EGR is stuck (which it more than likely is), a P0171 can be set. Fix the EGR first, clear the codes and see if P0171 comes back.
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1995 Buick Rivera scan codes P0171 fuel trim lean, P1406 EGR Pintle postion
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