What's up fellas, i'm new here but i was hoping you guys could help me out, a friend has a 00 Xterra and she had a tune up done, wires, dist cap, fluid and all that crap done, however they didn't change the plugs, so she leaves the shop and a day later the engine light comes on.... two errors p0235 and p1148, knock sensor and malfunction with the air/fuel mixture..... any help is appreciated, i know if the plugs were new and weren't capped properly that might give a knowck sensor error, but the plugs weren't changed, can it be a result of the wires? how about the other error? what would cause that?
thanks again....
