k, heres a question tho. I have a dual over head cam swaped in my car. How do I figure out what type of 240sx my computer is from(s13/s14) so i can go get another maf and try it out. and wouldent the 02 sensor regulate fuel? if it is getting inaccuret readings from the sensor its going to cut fuel to my injectors threw my ecu's reading of weather im lean or rich so I think it might be over or under compensating with the lack of reading....I mean thats why the 02 sensor is their.