I recently changed my plugs &wires befor my trip to FL had to remove the intake to do so. A few hundred miles on the rood the (ce) light came on obd2 codes p0171&p0174 showed up awile later they went away. So i thought it was just some bad gas.Then they showed back up drove for afew months with it on. I thought it might be the intake gasket so i changed it and i may have over tightened the bolt & also not in the right pattern cause did not have book for torqu specs. and tightening pattern. anyway the light came back on after reseting several times. kinda dont know what to do next. if anyone has any suggestions would be app.