Ok where should i start. I have a 97 200sx Se-r B14, i have a check engine light on for a P0335 and another code for O2 senser 1 Bank 1, and a crank senser. went to emission only throw the code for the crank senser. went back after replacing senser cause senser was broke of but car ran fine. now im throwing both codes again. but both sensers are brand new. where should i start. replacing both senser again or looking into a wiring problem.