im going to a car show tomorrow night, and my friend who im going with cant bring his car, and i really didnt wanna bring my car A)because of low idle and the 2 error codes i got today ( here is link t other post).....well my friend cant drive, so that means i have to, and i was gonna get my TB cleaned at the meet on sunday, but i guess we are gonna do it ourselves tomorrow....im gonna go to autozone and pick up some TB cleaner (fuel injector safe) from autozone, then im gonna head up with some rags and a toothbrush.....ive read all the instructions on how to do it but i still have a few questions...

1) approx. how much cleaner should i spray in there? and should i spray it on the butterfly too?

2) should i manuall open the butterfly with my hands/toothbrush or use that pully thing right near the opening?

3) do i clean both sides of the butterfly?

3a) approx. how long will it take to do a clean job?

4) any possible damage if i slighty **** up?

5) if i leave some dirt and cleaner in the tb, say if i forget to clean it out with the rag, what are possibilies of it?

6) will this clean out my ****ing low idle and gay gas mileage problem!!!

i appreciate anyone who can answer all/any of my problems, and also if you could read my other post about the error codes....i love u guys if u can help me out with everything, if not well, **** you's ! j/k

 

1) Spray anything you can. It doesn't really matter how much you use. I'd say around 1/4-1/2 a can if you have some major buildup. You're not gonna disconnect the TB are you? I did, and I did a complete and thorough job cleaning the butterfly valve, front and back. But it's nto really necessary.

2)Use your hand to pull back the lever thingy.

3) Depends if you want to remove the TB completely.

4) not really. But if you remove the TB, don't quote me on this, but you have to torque the 4 bolts back on in a criss cross pattern, at 8 ft/lbs each then again in the same order at 16ft./lbs total.

5) Nothing bad will happen. Worst case, you might get a little black smoke out of the tail. It's nothing harmful though.

6)Probably won't imporve gas mileage. BUT, it will increase response from idle.

If you have a gas mileage problem (I've seen some of your other posts) then check your fuel filter, O2 Sensors, and battery. Those are three problems I got replaced and/or fixed and my gas mileage has become much better.

hope that helps. i'm in a good mood right now becuase on my campus parking lot, i have a 2k maxima + 99 I30 parked next to me.

 

i changed my fuel filter last week, and thats when the idling problem starting happening....and stalling everyone in a while....so then i was fixing my diy intake today, and i started the car my accident with the intake not put together, and i got the MAF error code and knock sensor code....i reset them and they havent come back yet....im guessing it was just because it wasnt connecting....also, im assuming the knock sensor came on because of the MAF error.....please let the responses come in, and Turd your posts have answered most of my questions, but is it possible for anyone to tell me how to clean both sides without removing the whole piece (we only have about 45 min to an hour to do it )...also, does the car have to sit for a while after finishing it, or can i just fire her up right away?....well thanx for the responses..

 

I can add the following...

4) any possible damage if i slighty **** up? Yes, be careful that the
straw on the nozzle, if you use one, dosen't fly off and end up deep inside your TB. That would be a bad thing.


6) will this clean out my ****ing low idle and gay gas mileage problem!!!
Doubt it. It didn't fix my low idle and as far as I know no one else here claims it did either for their max's.

 

straw off what nozzle?? ive been searchinig and a lot of people have been saying that TB cleaning as fixed their idling problems, same symptons as me, about when coming to a stop it drops to around 300, and then ges to about 500-550.....also what could be the casue of the gas? knock sensor?

 

You'll probably get a straw attached to the TB can when you buy it.
Ok, I did search and yes there have been reports of a TB cleaning fixing idle problems for some. I did imply I wasn't sure before. It didn't work for me however and I turned a white rag black with junk from cleaning it. I still think my idle problems are from the IACV.

 

Lol, I hope you didnt clean your TB with the car running

 

the thing that puzzles me is, that all this starting happening was when i changed my fuel filter...there were no leaks or anything....i dunno wtf is going on....i hope its nothing like faulty knock sensor or needing to clean IAC valves

 

The TB takes 5 minutes to take off. 4 bolts, 2 coolant lines, and 1 vacuum hose.

I'd take it off.

IanS

 

I gotta ask, is there any chance you installed the fuel filter upside down?

 

Not me, but it has happened to others.

 

And is it the right filter or maybe defective?

 

i got the filter for the 96 300zx fuel filter...maybe there is n/a and turbo ?? i dunno....also, the part i put up was the part that had the little rubber thing on it

 

I did this, and MANY MORE THINGS and nothing changed!
But, although I thought I installed my fuel filter correct, maybe I didn't...if that turns out to be the problem, then I am the world's
biggest sucker!

FLO_BOY

 

The filter is the same part # for the n/a and the turbo's. I haven't seen one, so I'm not sure about the little rubber thing, but there is usually an arrown engraved on the side of the filter to indicated the flow direction. Like someone else said as well, it's possible the filter itself is defective. Considering your problems started when the filter was replaced, I would be looking in that area first for any problems. Maybe when you were installing you put some pressure on some of the other lines in that area and loosened them a little. An intermittent vacuum problem can really screw things up and can be hard to find as well.

 

hmm ****...i really dont wanna take it to the dealer/mechanic....maybe someone at the meet can take a look at it for me

 

I'll be at the meet doing a throttle body work shop on cleaning and what not. I think this is scheduled for around 1PM at Ange's car. I'll be happy to take a peak at your idle problem and fuel filter install if you like. We could even use your car as one of the demos if you like. Bring some tools with you so we can all do this together.

Tom

 

Weired. I changed my fuel-filter last week and the IAC Valve started ticking at idle. But then while the airbox was off, I decided to give the TB a clean as well and one of those two caused my IAC to tick at idle.

 

Yeah I shot the little straw down into my intake last week, almost ****ed myself, was going to take the uper phlenum off, but got it out with a coathanger....scary.......

 

I wouldn't spray beyond the area you can immediately clean. There is a lot crud in the intake manifold. The only place this stuff will go to is the rest of engine. I was concerned that it could junk up the fuel injectors, valves, and other things.

I just did my tb last weekend to solve a sticking problem. It worked fine, but I didn't clean anymore then the area around the butterfly valve and butterfly valve itself, both sides.

 

After cleaning idle was at something crazy like 1500 for like a day then went back to little above normal (900) The acceleration was also great and the shift felt smooth like when I first got the car, no more hard jerks but that was also short lived (maybe 2 weeks) It did make a big difference for me but too bad it didn't last longer. I'd really hate to have to clean it bi-weekly to have that feeling again.

 

well i cleaned out it out today, i have some pics of the cleaning and the rags and stuff after....wow dirty....my idle is a little bit more normal now, 520-700 range, and it doesnt dip to 200ish when i stop.....my gas mileage is somewhat better.....i drove around 150 miles on half a tank, but that was mostly highway....also, i went to the nissan dealer, and was telling em my situation, and he said i shouldnt replace the knock sensor?? i dunno, he didnt give me any reasons, but he said it was fine....i was but im getting the error....no its fine...i was like oooh ok ? i dunno what thats about .....and also, you can use my car for the demo if youd like thats fine with me....if possible can u check my throttle body (to see if we did a good job), my fuel filter, the fuel lines, and also my custom intake to see if their are any leaks or what not.....also, if there is a way to check if my knock sensor is bad, or whats causing bad gas mileage, its up to you really, but you can do whatever you want to my car except mess it up more