Intake Suction Sound???

[HammondMSP]

(boom07) My Injen is not doing that sucking "SSSssswwwooooosssshhhhhhhh" sound like it used to (Turkey is still there)... It only seems to be making about 25% of the sound that it used to make! Dunno, might be loose. Already checked the filter and it's on tite and correctly. Any suggestions???

Thanks,

HammondMSP

[Micah]

clean it

[MSPinVA]

^^^ definitely

[Rich24km]

clean filter

[Micah]

sometimes it's the simplest thing

[unwrittenLaw]

This happened to me..but most of the time it would be quiet, then once in awhile it would sound much louder. I checked connections and cleaned the filter, and its still very quiet compared to when it was louder. I also noticed that when it was louder, the turbo was spooling faster according to my boost gauge...not sure whats up...

[MazdaSpeed0020]

can we just use the K&N cleaning kit for the filter, or is there something else better to use?

Matt

[unwrittenLaw]

i'm sure the k&n kit would work fine.

[BMC]

Anyone doubt the Injen filter? I took my filter off and looked in the pipes, a layer of dirt before the mass air flow sensor. I am thinking of switching to a K&N. Anyone recommend a better filter?

[mazdaspeedpower]

Yeah, I say K&N, as the manufacturers aren't too worried about how thier filter werks, they only want mass air, easy flow, and that you bought their kit. K&N has a pretty good quality filter, which will catch more of the dirt and shit. ONe thing when you start modding your engine, is that you should change your oil more fequently. As there is more stress on the engine, and the fact that more dirt and shit will get in through filters, causing the oil to thicken, you don't need your engine to werk hard.

[HammondMSP]

Now it sounds muffled... Gonna check for roadkill in my fliter... Aggravating!!! I'll try to clean it; hope that works!!!

HammondMSP

[Rich24km]

Yup, its recommended to change your oil every 5,000 to 7,000 miles on this cars book, i do it every 3,000 if that much. usually 2,700.

[Striker187]

doesn't the injen filter use a k&n element?

[MazdaSpeed0020]

Im not sure if it does or not, I thought I saw Injen printed on the top of the filter, but it could be a K&N also.

Matt

[Bhamsan]

I had read somewhere before about a month ago that someone was saying the inside of the Injen was filthy after about a months use because of the surge from the BPV is shooting air and shit back out the filter when shifting. Maybe that could be it? I'm not keen on the technical terms of things, but that was the main jist of it.

[unwrittenLaw]

This happened to me..but most of the time it would be quiet, then once in awhile it would sound much louder. I checked connections and cleaned the filter, and its still very quiet compared to when it was louder. I also noticed that when it was louder, the turbo was spooling faster according to my boost gauge...not sure whats up...

sorry for quoting myself, but today when i got off the freeway i noticed that the intake sound (mainly the swoosh/sucking) was much louder and that the turbo was spooling much faster on my gauge. this is what i've been talking about since i installed the injen cai...but i can't figure out what/why/how it happens...i don't get it...

the filter is clean, everything is connected tightly...so i'm not sure how to figure out what is causing this random increase in noise and faster spooling...

[LAZERBLU2003.5]

Mine will do that too.. mostly in the morning, you can hear the turbo loud and then it will be like there is no sound at all, but there is still boost????? and I have a K&N cone in the well.......

[Puckpimp71]

Which K&N goes on the Injen?

[unwrittenLaw]

Mine will do that too.. mostly in the morning, you can hear the turbo loud and then it will be like there is no sound at all, but there is still boost????? and I have a K&N cone in the well.......
Mine happens randomly it seems, regardless of air temp. But I did notice that it changes sometimes after driving on the freeway. This morning when i left for work..it was still very loud and spooled much faster, as well as boosting a little higher..I wish it would stay like this, but I'm sure it wont...my car is wierd.

[AutoBox]

could have something to do with the air pressure and/ or filter restriction.....also does it get quiter as u drive.....there can be a issue with the ic heat soakin and slowin down the air????throwin out ideas here lol

[unwrittenLaw]

yeah i was thinking of those things too..but i dont think thats it. and no it doesn't get quiter as i drive....it actually just all of the sudden gets louder, after i've been driving a bit. the filter is clean, connections are good, no blockage in the intake piping. i've checked everything many times. i think its something more complicated like with one of the sensors or the ecu. or it could be related to the vtcs problem i had a while back with the plates staying closed when they were supposed to be open. the dealer said they fixed it when they replaced a check valve, but i'm not sure about that.

only other idea i have is, last time i went to the dealer for a CEL, they pulled the code and it was something to do with a faulty maf sensor, so they replaced it. the guy said it was due to the injen's cooler air throwing off the sensor, so they put in a new one. maybe it recalibrated itself and its running how its supposed to now...i dont know how the cooler air could 'break' a sensor or whatever...i didn't get a chance to pull the code before i went to the dealer so i'm not sure...he said they would replace this time, but next time it wouldn't be under warranty because of the injen cai....i dunno.

all i know is, there is a big difference between when its very loud and spooling faster, and when its more muffled, and boost builds very slowly....

[Wingman21]

the guy said it was due to the injen's cooler air throwing off the sensor, so they put in a new one
(lol) (lol) (lol)

[unwrittenLaw]

yeah i dont know where he got that from...

[INGREXCO]

i went to autozone and had them check my CEL, o2 sensor (its not plugged in lol) and maf was sending low voltage, i asumed it was the colder air confusing it

[unwrittenLaw]

could be...but the dealer said the sensor broke because of the injen cai...so next time they wouldn't replace it under warranty...

[Puckpimp71]

i went to autozone and had them check my CEL, o2 sensor (its not plugged in lol) and maf was sending low voltage, i asumed it was the colder air confusing it
If that were the case, why doesn't everyone's MAF go awry in the winter?

[wicked]

(attn)DON'T USE THE K&N FILTER OR RECHARGE!the oils from your k&n can and will alter your maf sensor.it's fine for most cars but not with a maf.the injen has those oils too just not much of it,thats why it didn't get better when you cleaned it
I advise using a green filter or anything else oil free

if you think I'm b/sing then ask around
just trying to help (msptitani

[Wingman21]

(attn)DON'T USE THE K&N FILTER OR RECHARGE!the oils from your k&n can and will alter your maf sensor.it's fine for most cars but not with a maf.the injen has those oils too just not much of it,thats why it didn't get better when you cleaned it
I advise using a green filter or anything else oil free

if you think I'm b/sing then ask around
just trying to help (msptitani
Green filter doesnt need to be re-oiled !? Just cleaned with some pressured air !?

[WillisW555]

(attn)DON'T USE THE K&N FILTER OR RECHARGE!the oils from your k&n can and will alter your maf sensor.it's fine for most cars but not with a maf.the injen has those oils too just not much of it,thats why it didn't get better when you cleaned it
I advise using a green filter or anything else oil free

if you think I'm b/sing then ask around
just trying to help (msptitani
Blitz says the same thing I think. I remember looking at one of their intakes (for a different car) and they said that the oil gets sucked off the filter and can coat the sensor.

[TXMazdaSpeeder]

Blitz says the same thing I think. I remember looking at one of their intakes (for a different car) and they said that the oil gets sucked off the filter and can coat the sensor.
so does the aem filter do the same thing? maybe thats why my car runs like ass.

[Puckpimp71]

I'm going out on a limb here, but I thought one of the reasons they used oil in the filters was to slightly coat the MAF to trick your into pulling in more air. It's been a while, but I thought I read something to that effect on a K&N I bought a couple years ago.

[Rich24km]

i reset the battery, with mine......i noticed that when the engine wasn't warmed up it would do this.....but it works fine...it all depends on how much gas you give it also to hear the sucking sound with mine. If i'm on it hard...the engine is overpowering the sound of it...so i can't hear it too much anyways...but for the most part now that i reset the battery it is always loud..my .02 cents

[unwrittenLaw]

mine has been staying much louder for the last couple days, so maybe replacing the faulty maf sensor has fixed it to how it should be..much louder and faster spooling..

[unwrittenLaw]

well it went back to how it normally is...quiet and very slow spooling :(