09-11-2010, 09:26 PM
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#1 (permalink)
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| Junior Member
Join Date: Sep 2010 Age: 37
Posts: 1
|  2006 cobalt ss supercharged
I have a problem with my cobalt. For the past month I've had the p0171 code come up. The first time it was a bank 1 so I replaced the o2 sencer before the cat. That took the code away for about2 days than came back on. So I went into the dealership for help and they replaced the MAS and cleared all the codes. Now the check engine lite is back on and we are stumped on what it can be. If anyone has any ideas please help me out. Thanks
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