GaTechMax

I have been haviung trouble with my max for about a year. It keeps reading the same O2 sensor codes te car runs terribly it sputters and losses power and then all the sudden bursts with power, so at first I replaced the O2 sensors with the cheap splice-in type from auto-zone, but that didn't fix the problem so I bought nissan factory O2's. That also didn't make the codes go away or the car drive better. The Nissan dealership said I have too many aftermarket parts on the car for them to work on it, but there are plenty of people on here with more mods than me. I had an SAFC in but it died. I don't know if that might have messed up my ecu or what. Anybady with any advice would be greatly appreciated, because I can't drive my cart until I can pass emissions.

mansurxk

iTrader: (14)

coil packs failing? not sure fi that would throw o2 codes though. just to confirm, what # code did it throw?

GaTechMax

I can't be sure because I don't have the book with me or the car, but I think the codes were 0303 and 0503. I know the codes meant something like
"O2 senesor or circuit fault".