im having some issues with my G35S sedan 2007. The car is producing low rpms and sometimes It'll stall to shift into gear like it should. It's not really bad to where you can't drive but it's becoming a neusance when I need to drive to work or something. I'm thinking it's the idle air control valve or may be my MAF sensor. Any ideas?

 

Any Engine Codes?

 

I haven't checked for codes yet.

 

Hmmmm.....

 

any ideas what it might be ?

 

It could be as simple as a vacuum hose is disconnected, an air leak somewhere in the intake, all to anything under the sun. That's why we ask for engine codes first .

 

I will check for codes as soon as possible.

 

There isn't an actual IAC valve on those motors it's just an idle ECU calibration. Check for a vacuum leak I'm sure you'll find one somewhere. Also try an ECU / Idle recalibration/reset and see if it helps.

 

where can I get my ECU recalibrated?

 

I think this procedure is for both DE and your HR motor.

http://www.nicoclub.com/archives/g35-350z-ecu-reset-procedure.html