I have a Weapon Intake with a K&N Filter. For the last week or so it has been hesitating in 1st and 2nd gears, I would give it all the gas it needed but there would be a sudden drop in power lasting a split second and then it would go just fine. I cleaned the filter yesterday and now its running great. I only have 5000 miles on the filter and it wasn't that dirty at all. So I am wondering, anyone else ever have this problem with an intake?

 

Try cleaning your MAF and TB.

 

The maf was clean as far as I can tell or is there a way that I can soak it in someting to clean it. Also, how do I clean the throttlebody without getting anything in there?

 

Good questions, I have no idea how to clean both of those.

Woohoooo, 1000posts.

 

dont dip the maf into a claeaning agent. I don't know what is used to clean the maf, except maybe a light alcohol solution and a qtip. these things are very sensitive, as I had found out on my truck. kast $370 mistake I ever make

as far as the throttle body, you can use carb/choke cleaner and a wire brush. just spray in there and get all the gunk, and the deposits from the inner walls of the throttle body, and wipe clean with a rag. when you first start up after the cleaning, it will choke a little bit from the carb choke cleaner, but should run better than before.

 

Thanks, When I looked into the Throttle Body , pushing in all i could see was Black. It was filthy!!!! I think i will clean that out tomorrow.

 

I'm having this problem with my 2000 at high rpms. I have an injen, but I think it may be running rich cause I get a bad smell from the exhaust when I run it hard. Any suggestions?

 

fuel injector cleaner?

 

http://maxima.theowensfamily.com/tsb/NTB03-022.pdf
Head straight to you friendly neiborhood Nissan dealer

 

I heard someone using electronics cleaner or something probably from radio shack or something to clean teh MAF sensor

 

Use Gunk Throttle Body Cleaner. It's a grey can. Don't spray it into your intake manifold. Spray it on a towel and wipe. This way you won't damage anything. Spraying it directly in and your on your own. Just wipe the inside of your maf, but don't clean it with any cleaners.

 

Yeah, like that works. I brought mine the TSB and everything and they said they "couldn't reproduce it". BS!

I need to find another dealer!

 

Mine is a 2000 auto and it seems to lose power right when it needs to shift into second. It does this at high rpms. I've been using amsiol P.I. for a few months now.

 

Is it your trany? Does it seem like the car is hesitating right before athe 1-2 shift ar WOT? You may need to have Nissan replace some solinoids in the TCM.

As for cleaning the MAF; I used a product called CRC contact cleaner on a MAF for my SAAB. Just took it out, sprayed doun the inside and let it dry. I cant see any reason why a Nissan MAF would be different.

I found this contact cleaner at Home Depot.

 

Oh...Also

This may be a question, but can you not just remove the throttle body to clean it?

I havent even seen the throttle body on our cars. Maybe I will take a look this weekend.

 

it seems to only do this at wot, i have already had the solenoids and tranny changed out last year.

 

i think could it be running rich. i get an eggy smell when i run it hard.

 

I don't understand why cars this new have this issue. Is it just those with aftermarket intakes? How many with the stock box/nissan filter have had this trouble?

 

I don't think my TB is dirty, the last time I checked it it seemed clean, it just had a slight chalky film in it, i could barely see some on my finger when i wiped the inside.

 

O2 Sensor?

 

Maybe, I had the exhaust o2 sensor off when I had the catback put on. When the ses came on, I put it back in. It may have been damaged when it was thrown around in garage, but I'm getting no ses now. How does the o2 sensor make it run rich?

 

Mine was pretty filthy, running on an all-stock setup before... and that was at 30K miles. I haven't done it since then, and she has 56K miles on here, god knows she probably needs it again

Face it, crap gets in there, air filter or not... in fact, some of this gunk could be from the PCV system, especially oily fumes that bake on the hot throttle body/manifold after the engine's shut off.
This is just a theory, but you get the idea.

 

I got the WeaponR w/ apexi filter. This has happen to me only a couple of times, but i thought it had to do with the fact that my Max was an automatic. Cleaning the TB and MAF could be a solution. Maybe it's the nature of the WeaponR intake itself.

old pic, new one on the way.

 

o2 sensors determine your air/fuel along with maf until wide open throttle when the o2 are ignored and the maf completely determines it.

 

It seems to only happen at wot.

 

Hey I have the same problem I have a 2000 Auto. When I run the car hard off the start there is a delay in the shift to second gear. I sits at the rev limiter for a while and then a violent shift. I have sent the car in for the transmission before about the solinoids. And I also get an eggy smell after running it hard. Now my car is stock. But tonight i'm installing the PR CAI. We'll see how it runs after that.

 

a rotten egg smell can also indicate a clogged cat. i would think it was throw a code if the cat failed but would just hinder performance if it was clogged. i assume the air filter is in good condition and not bottle necking the flow to the engine?