Okay, about a week ago, my car died just after hitting closed loop. It was very similar to running out of gas, but I got it an extra 1/2 mile by just pumping the gas pedal and inching it along. I assumed at first it was the fuel pump, because after I put about 3 gallons in (it was really low on gas), it still wouldn't turn over and I couldn't hear the pump priming very loud. Anyways, I got it towed home, checked the codes, and got 44 and 64, both sides lean. I know one O2 almost has to be good, as it was changed last spring. It will start and run now, granted I haven't had it out of open loop yet, gonna test that tomorrow, but does anyone have any ideas? Could this be a bad pump though, or something else? I do know there's a mild leak of one oil ring that leads to mild fouling, but I wouldn't think that would affect both sides. Any ideas would be greatly appreciated.

 

A fuel pressure test gauge is what you need to prove you are getting enough pressure for the engine to run.