ffwhitman Posted February 1, 2013 Share Posted February 1, 2013 So my 97 legacy gt has been running pretty crappy lately. Between 2k and 3k RPMs I have no power. The car is currently only getting 15 mpg as well. The stuff I already did were NGK wires, new bpt, all new silicone vacuum lines, new intake gaskets. I am running a 2.5" custom cat-back with a knocked out cat and aftermarket header. Any help would be appriciated. Link to comment Share on other sites More sharing options...
Kiyo1990 Posted February 4, 2013 Share Posted February 4, 2013 Glad you asked this...I'm getting nearly that too and i do not enjoy it, I know I need a front cat and o2 replaced. Hopefully you get skme help here Have you done a fuel filter or fuel system cleaning? Link to comment Share on other sites More sharing options...
ffwhitman Posted February 5, 2013 Author Share Posted February 5, 2013 I did do fuel filter and just changed fuel pump too. I also just had my cel pop up with the o2 sensor code so I guess that is the next step Link to comment Share on other sites More sharing options...
Kiyo1990 Posted February 6, 2013 Share Posted February 6, 2013 I am tackling those next...headers, front car and front o2. I hope they help a little but how bad are gas prices up there? Have you tried injector cleaner? Link to comment Share on other sites More sharing options...
ffwhitman Posted February 6, 2013 Author Share Posted February 6, 2013 Prices are 3.50 here and I've used a couple different injector cleaners and some water removers Link to comment Share on other sites More sharing options...
twisty Posted February 12, 2013 Share Posted February 12, 2013 sounds like O2 to me. same thing happened in my truck, mileage dropped from 16.5 to 7.5 mpg and it ran rough. changed that O2 out and all good in the hood. Link to comment Share on other sites More sharing options...
SCASEYS Posted February 12, 2013 Share Posted February 12, 2013 you running an intake? go back to stock and the mpg's will increase I donated to LegacyGT.com which allows me to have this nifty signature. If anything SCASEYS posts ever becomes a sticky i'm gonna light this whole place on fire Link to comment Share on other sites More sharing options...
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