It would be odd to be that simple, and you risk setting an engine code like others here. Give it a try though. Mine was black after 100K miles.

Do it right and you'll be fine, it's not hard, just be careful in there.

And it does sound likely to be the cause.

Thank you, I'm thinking of just having it done at the dealership in case there are any problems. I hate to pay the money, but I hate to screw something up and making it a bigger problem. I've been fortunate and not had to put any money into the car, it runs great and has been problem free so this once I'm thinking of just paying for the work.

Well, yeah, depending on the dealer, you might not have any luck with them doing that, it's not a service book procedure, perhaps just clean it on the car, spray liberally with carb cleaner, and use an old toothbrush on the bits you can see.

I'm thinking of cleaning my throttle bodies soon, but I've seen some people had the high idle, not idling properly and throttle position problem thingy, etc. Why does that happen ? I've already bought a can of CRC throttle body cleaner and a microfiber cloth. Also what's the part number of the seal ring ? I tried looking #1404OEA on eBay and can't find anything.



Thanks

That's not the part number Jeremy; it's just a reference number into the parts list for that diagram. Actually, it's not even in THAT diagram though; it's number is only shown in section 140 which I've listed here: http://infiniti.sewellparts.com/oem-...edan-2008.html The correct part number is 16175-JK21A.
As to why some have trouble with throttle body cleaning while others do not, it's truly an odd thing. Based on all the mixed and varied reports posted here and in other forums by those who've done it, I suspect there are just so many variables potentially involved that is hard to accurately quantify what the absolute best method is for success. I'm about to do it here soon for the first time myself, so I look forward to gaining some more personal insight.

Good luck!

Yeah, the high idle thing is a mystery. I've cleaned mine like 3 or 4 times in the last few years and never experienced high idle. My method is completely contradictory to the "proper" method. I just push open the butterfly, hold it open, spray the hinges and inside the tb liberally, take a tooth brush to the hinges, spray again and wipe out til its clean. Takes about 3-5 minutes.

I only open the butterfly once, maybe twice the whole time tho. Just keep it held open. That may be why I don't get the high idle.

thinking about doing mine on my 06 g35x same idea as the op just only 1 throttle body right?

Excellent DIY. I did mine this morning in about 45 minutes. No issue, idle is great and feels like throttle response is improved as well.

Did mine while changing plugs 63k. Didn't discount battery, but disconnected the harness to tb but did not move flaps. Just sprayed and wiped surrounding. Took 45 mins for both. Put back together and had idle and got the high idle code. The relearn did the job. BTW shops snapon tool can't reset this. Manual resets and dealer consult only.

I can verify that ITB11-060 " INTAKE AIR VOLUME LEARN WILL NOT COMPLETE" TSB worked for me on my 08 G35x Sport.
I cleaned both throttle bodies while during a spark plug change. I did not disconnect the
throttle bodies or the battery and still got the P0507 code and the 800-900 rpm issue.
After 5-6 tries at going through the:
PERFORM ACCELERATOR PEDAL RELEASED POSITION LEARNING
PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
PERFORM IDLE AIR VOLUME LEARNING
procedures with no luck I found out about ITB11-060. I pulled the passenger side MAF connector and got a P0102 code. I cleared the code using my ScanGauge II, went through
the processes again, still didn't work. I noticed on the ScanGauge that my Throttle Position Setting (TPS) was at 2%. I re-did the entire process again, this time pulling the driver side MAF connector. This time I got a P010C code, cleared it, performed the rest of the procedures, and my idle rpm went down to 700. Let the car sit off for an hour, restarted it and my idle speed was 637rpm as measured by the ScanGauge. And the TPS was at 1%.
I think I might have been too fast with the throttle valve closed position procedure the first time I did the MAF reset. But doing the MAF reset before the other procedures worked and my idle speed is within spec now.

Thanks for the report. This is very good to know.

Throttle body cleaning complete. Straight forward stuff but sure was nice having a DIY for this. Satisfying DIY maintenance everyone needs to do. 66,000 miles, they were pretty filthy.

ok Im going to be doing this, this weekend. I just want to verify a few things. Basically all I have to do is just unbolt the throttle body, Do NOT disconnect the battery,Do Not disconnect the connections to the TB and no need to have the ignition key on any specific position right?

Just unbolt, clean it, including being able to open the butterfly and just bolt back up? Am I missing anything here?

I have a 2006 G35 sedan....

This is a gen2 specific thread.