Hey guys, I'm getting really frustrated with my 98 svt. My cel came on and it was a P0131, a bank 1 code, so I replaced it with a ford part, drovce it for a few miles, light came back on, but now with a P0155, a bank 2 code, so I replaced it with a bosch part, cuz I'm broke as hell, drove a few more miles, lights back on, same code, I replaced the MAF as well, any thoughts? I'm gettin really pissed, I'm about to rip the bulb out and sell it, so any help would be appreciated.