2000 sentra wont go over 20mph
I could use a little help. I have a 2000 sentra gxe. It wont go over 20 mph no matter how far we push pedal down. It rev's up is all. I stopped at autozone on my 20mph trip home and it came up with 3 codes. P0420, P0455, and P1448. From reading and research i cant pin point what to fix. I was hoping to be able to do the work myself. Please help\advise.
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