How often should the trottle bodies get cleaned? My car bounces when on the highway I think that might be the problem.

 

Trottle bodies ?? Is that some sort of new mod or something ?????

 

Throttle bodies... and u shld clean it when your car starts roughly idling. For some people, that's after 30k miles, for others, they might never have to clean it.

 

trottle bodies...Lord of the Rings right?

For throttle body service, 30k is standard, but many wait longer. I typically use a quality additive (Lucas) till about 60k, then use the 'hood/induction' service from the dealer at 60k. I'm in CA, so the additives in our blend of fuel can cause issues if you neglect this too long. I've never had problems with rough idle. I tried the DIY cleaning a few times and the front side of the TB never looked dirty. The induction cleaning the dealer performs is alot more inclusive.

 

When I had my 06 G35 I had the dealer replace the plugs at 106k miles.
They cleaned the throttle body at the same time.
If you change your air filters regularly your throttle bodies will remain clean.
I inspect/change my air filters every 8 to 10k miles.

Telcoman

 

Dirty throttle bodies aren't caused by dirty intake air (at least that which is coming from the outside / passing through the filters.) The recirc system that puts oil blowback into the intake stream is the culprit.

An oil catch can would potentially alleviate the problem. My car is especially prone to oil buildup on the throttle body butterflies - I have to clean them about every 10k miles - so I've definitely contemplated getting one to see if it solves the issue. (Fwiw, I'm also religious about air filter maintenance, which is definitely somewhat of a Pita with the Stillen gen 3s.)

 

I have a 2010 g37x
Thank guys for the info

 

Bingo! Spot on, aktif8.

You know, I've never researched the forum for an oil catch setup on the g37. Got anything you'd like to share?

 

Interesting, I'd like to hear more about a catch can setup for our cars also.

 

AAM Competition - Nissan GT-R, 370Z Turbo Performance Specialists

 

Don't our throttle bodies fully open and remain fully open when the engine is started? They shouldn't be responsible for a rough idle if they're fully open all the time. The VVEL regulates engine speed, not the throttle bodies. The throttle bodies are simply there as back up when/if the VVEL solenoid fails.
So whether your throttle bodies are filthy or pristine it shouldn't matter.

 

Good link, Sam. $500, eh? Yikes! Anyway, using SEARCH now... Lots of info on catch cans.

Say, how about fixing the misspelled thread title?

 

Throttle bodies control air into the engine, so I can see how some would connect condition of the air filter to the TB.. I've never seen any dirt on the outside of the butterfly, so that's why I question DIY cleaning. VVEL essentially replaces the camshaft, so I'm not sure how it's related to the TB. I agree that a majority of the filth is related to blowback on the backside of the butterflies. The dealer seems to have an effective means to clean the induction system, including the backside of the butterflies for a reasonable price.

 

Utter nonsense about VVEL replacing the camshaft[s]. Research this engine and you'll know.

 

Replaces what is commonly referred to as a traditional camshaft (with control shafts, eccentric cams, DC motors, etc.):



This is one of the main reasons the VQHR37 is difficult to modify.

If you spend some time on the Z forums, there is alot of information there on VVEL. Substantially different from a traditional camshaft engine.

I still do not see a connection between the less traditional means Nissan uses in the VQHR37 to open and close intake/exhaust valves and how this relates to deposits within the TB.