Well, when I suddenly push the accelerator (to speed up fast) I'm smelling petro, and I've just changed the Oxygen Sensor, also, I'm experiencing a low milleage per tank. My car gives me about 275 miles per tank, about 23 or 25 miles per gallon, is that right?? I know you will say, "when is it going to end?", sorry, but I need your help, my car have many details that I must fix. Like the sunroof motor isn't working, the spoiler light is off, the amplifier not working, the A/C not working, etc. I paid $1000 for the car. Thank you for your help.

Have you checked for leaks, especially round the fuel filter and fuel rail connections, these may only happen when driving hard due to the increase in the pressure.

lol. sorry about the comment. it was meant to be sarcastic...oh well, nvm. 23-25 mpg for a 5sfe actually is pretty realistic figure. My st only gives 28-ish if I go 55mph constantly during optimal engine temperature. I remember that you're also losing slight power due to rpm shooting higher (running a bit rich), where an ecu reset can do the trick, and using good oil... checking fuel filter is good advice, especially if you're smelling excessive gas fumes other than the time you're warming up. Sunroof motor, ebay, I think corrolas' motor will do... A/C, service and recharge in a shop.

Ok, thanxs guys, about the comment, nvm, I was smiling because I know you're a cool person, I'll reset the ECU today, Thanx.