FI and Map Sensor Fault

conmam

I am trying to clear things up here. The MAP sensor for the 370Z ( VQVHR engine ) is NOT the same as the one for the R35 GTR. The only purpose for it being around for the 370Z is for the evaporative emission control system ( Canister purging ). Nothing to do with performance. However : If this MAP sensor is malfunctioning , it will cause driveability problem because of the purging of the canister when it should not be purged.

Well, the code P006a ( Manifold absolute pressure
- mass air flow correlation) will show up for sure for 2010-2012 370Z if you run forced induction system. For 2013+ 370Z, you might get code P010A...... For the 2009 370Z, luckily, the ECM does not have this function so the code P006a does not exist, therefore, you will not have a CEL in this case.

Only one way to mask this annoying CEL is to use uprev and turn off the code. Even if you replace the GTR pressure sensor, there is no guarantee that the code will go away because the ECM voltage level is only programmed up to 1 atm at wide open throttle. Any boost > 1 atm will make the ECM assuming that there is something wrong even if the MAP sensor can read positive boost pressure.