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2006 chevy trailblazer_ls
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4 Posts
Discussion Starter · #1 ·
last night, i changed my oil & air filter - after driving 20 miles todday, check engine light came on. Checked code:
P0171 - running lean? Any ideas would be appreciated.
 

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Registered
2006 chevy trailblazer_ls
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4 Posts
Discussion Starter · #3 ·
-oil level & pressure are good, no exhaust problens - only 26k on engine - i am assuming that the running lean has more to do with the air filter replacement than the oil change, but i checked all hoses etc & all are good also
 
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