MAP/MAF Sensor

[jaxpacific]

Hey gang, Ran a search, but couldn't find what I was looking for. Does the 2002 4cyl have an MAF and an MAP or just an MAF? Any help on locating the MAP if it does? and I think it only has two narrowband O2 sensors, is that right? I know newbie modifications aren't the smartest thing in the world, but any help is appreciated.

Thanks!

[Darius]

The QR25 only has a MAF sensor. No real sense in running both MAF and MAP sensors although some cars do (RB26DETT). Most turbo engine modifiers will ditch the MAF sensor when a standalone ECU is installed.

The first O2 sensor is actually referred to as an Air-to-Fuel sensor. It reads the A/F ratio in clearer resolution than a standard O2 sensor which just tells if the exhaust gas mix is rich or lean from a 14.7 stoichiometric burn.

I'm not quite sure where you are going with modifying the O2 sensors??