G keeps going dead when shifting to neutral

[jt89888]

Hello,

This is my very first post, so i want to go ahead and apologize for my ignorance up front. I don't even know if I'm even in the right spot but what the hell... here we go.

I have a buddy who suggested I check out this site, I kept putting it off but now I need some advice from people who have more experience than me. He seems confident in you guys so I'll give you a shot.

I bought my 2003 Infiniti G35 coupe back in May of 2012. When I bought the car it already had a K&N typhoon intake and Stillen exhaust. Needless to say, I fell in love immediately.

Now keep in mind that this is my first manual transmission car, so it could be user error. So the problem I'm having is when I shift into neutral from high(ish) RPMs the car will go dead. Its like the car can't handle the sudden drop in RPMs and dies. This happened frequently when I first bought the car, then it just stopped doing it for no apparent reason. Well, it has started going dead again.

Any suggestions would be greatly appreciated.

Thanks,
Jeff

[larsG35]

I've remember running across something about intake issues once... let me quick check.

Here ya go, this might not be your problem, but it sound similar. I guess most suggest that it's the MAF sensor.

http://g35driver.com/forums/g35-coupe-v ... stall.html

Good luck,
lars

[jt89888]

Ok, so it's an intake issue... That makes sense because it started again right after I cleaned the air filter.

So from what I gather, I can just disconnect my battery for about 10 minutes and the Mass Airflow sensor should reset itself... Right?

Someone mentioned to me that it could be a problem with the idle air control valve, but from what I've read about idle air control valves, it seems like I should also have an issue just idling sitting still. But the only time I have an issue is when there is a sudden drop in RPMs?

[larsG35]

I'm certainly no expert on the situation (sorry), but from what I understand, the MAF sensor does reset after disconnecting it.

I don't know what dignostic tools you have at your disposal, but if you check out Joe's signiture, he has a link to the G35/37 FSM Joe's pofile

The page on Engine Control is under the "ec" directory for the 2003 coupe. You could try testing voltages/resistances of the MAF sensor component as described.