09maxshawn11

Let me give you the background decided to bring my 5th gen maxima 02 3.5like out which been out up since 2012 so far I put new spark plugs and new coils new intake gasket and new pcv valve in it I have codes popping up p0507,p0113,p1448, can anyone she'd some light please I don't hear anyone air leaks but I know my intake is kind of crappy, also next move I'm thinking about is putting a new air intake on it I hope I don't have to get a new throttle body or new ecm those the 2 main things I don't want to deal with

maxiiiboy

Your car is telling you that:

• It is idling higher than expected (P0507)
• There is a problem with the IAT sensor - it's sending excessively high voltage to the ECU (P0113)
• The EVAP valve control valve has a problem, looks like it's "stuck open" (P1448).

Ignore the 3rd bullet for the time being, it's mostly about emissions. This leaves the IAT sensor and the High Idle. I would check/replace the IAT sensor and re-test; there is some reason to believe that the high idle is due to the bad IAT.
You can get all this information from the EC section of the FSM. You can download the FSM from the link in my signature below.

DennisMik

iTrader: (2)

If you just did the work and now have the codes, there is a good chance that you may have forgotten to reconnect something. Check the plug on the IAT and vacuum hoses, etc.

09maxshawn11

Thanks for the replies I will recheck the vacuums hoses and also the hoses to the pcv valve I recently cleaned my air intake and connected the air sensor but I will double check to make sure