well I scanned it tonight and got some different codes. no maf code but I got these. po134-o2 sensor ckt no activity bank 1 sensor 1, po135- o2 sensor heater circuit malfunction bank 1 sensor 1 and it also showed a symbol that looked like a p and b on top of each other, po160- o2 sensor ckt no activity bank 2 sensor 2 and I got that code twice.