hey so my CEL came on i took it to autozone and i found out the code its throwing its P0171 "The powertrain control module uses the oxygen sensor to calculate the air to fuel ratio of the engine, the comp recognized a rich or lean condition on one engine bank only. problem cause ( if bank one and two codes set together suspect fuel pressure or MAF sensor oxygen sensor defective, ignition misfire-rapair, fuel injector problem"

my truck starts and runs perfect and i have no loss in power what should i do not really good with engines i just know how to do my basic maintenance should i just replace my MAF or take it to a mechanic ?

 

P0171 - Fuel Trim System Lean Bank 1

You could clean your MAF and look for vacuum or exhaust leaks.

 

thanks i hope cleaning it works

 

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