Originally Posted by coojo321
Now I have a 2000 ssei. The problem is the engine will buck sometimes. like when I am driving it will just automatically give itself more gas and the rpms will raise. Also if I am just sitting idling it will just die out. I am getting a code for a fuel lean bank 1. The engine just idles very eratic, dies out sometimes, and just accelerates for no reason at all sometimes.
Things I've already done:
cleaned the MAF
new fuel pump
checked for vaccum leaks
The rear oxygen sensor has no effect on the car'* performance.
I'd be looking at fuel injectors at this point, or checking for further vacuum leaks or a cracked upper intake manifold. I'm assuming you've checked fuel pressure?
Where do you live?
I'll move this to the proper section for you.