P0171 help!
#5
#6
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Join Date: Apr 2015
Location: San Jose
Posts: 18
Car Info: 2003 Subaru WRX wagon 5mt
Just had same thing, at last tune, I was told my front o2 sensor was going bad, also my Cobb intake was a little loose, fixed the intake leak and decided to replace the front o2 sensor as well,then cleared the code. so far so good only ran about 10miles since but seems good.
#7
Just had same thing, at last tune, I was told my front o2 sensor was going bad, also my Cobb intake was a little loose, fixed the intake leak and decided to replace the front o2 sensor as well,then cleared the code. so far so good only ran about 10miles since but seems good.
#9
#10
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iTrader: (1)
Join Date: Apr 2015
Location: San Jose
Posts: 18
Car Info: 2003 Subaru WRX wagon 5mt
Honestly I was doing a little reading seemed to be the Subaru sensors worked best without defected ones and ones that malfunctioned, I found them at fast Wrx for 249$ but my local dealership had it at the same price and in stock so I got them there, I also think Bosch makes one for around 80$ less but it was worth it to me for the peace of mind. Only took about 45mins for install, as far as the rear goes I'm not sure
#11
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Join Date: Oct 2010
Location: Peninsula, Bay Area
Posts: 1,314
Car Info: WRB Wagon
iirc i also replaced my o2 sensor with the bosch unit to be safe, after both of those had been replaced I never saw the P0171 again, good luck
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