Mike Frey Posted February 27, 2011 Report Share Posted February 27, 2011 so i got the long tubes put on and im just running open headers.. i drove it around town to see how it would do and it drove fine till my sel came on and its throwing P0174, system too lean. bank 2... btw i just bought new front 02 sensors when i bought the headers and installed them. the truck is tunned for no rear 02s. any help is apprciated thanks, mike Quote Link to comment Share on other sites More sharing options...
Fireman31 Posted February 27, 2011 Report Share Posted February 27, 2011 DId you make sure the 02 sensor is plugged in? Also, did you tune for the new headers? Quote Link to comment Share on other sites More sharing options...
Mike Frey Posted February 28, 2011 Author Report Share Posted February 28, 2011 DId you make sure the 02 sensor is plugged in? Also, did you tune for the new headers? yes there plugged in and i did have my pcm tunned for the headers.. i wont really know the problem till i get my full exauhst on but as of right now i think it is just throwing that code because i am running straight headers no y-pipe.. so the cold air from outside might not be letting my o2s get hot enought to ready accurate Quote Link to comment Share on other sites More sharing options...
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