Problem with rain and injen :(
 

First of I have to thank AK all the members and supporters of the370z.com. So I was driving in rain yesterday and I have injen intakes. I hit no puddles and car was running good. I parked the car and about 5 hrs later I went to move it in my garage. Car would shut off and my vdc lights came on as well as service engine soon. After about a minute I tried taking the car around the block and it would not go past 2500 rpms and when I changed gears it would go in hard. I left the car where it was over night and in the morning I take it
For a spin and everything seems fine except the service engine light is still on(the service engine light came on when I installed the cai and went away after 3 days) so Mayb the light will go away again?. I just wanted to share my story and I will update if anything changes(hopefully for the good). I again wanna thank the370z for the help it gave me when I needed it and I will def. Support it and become a member by the end of the week. Special thanks to Arnold k and chuckd for picking up Thair phone at 12am to help me out.

Thanks for sharing your story. Hope things work out for you.

i think it has to do with the light that went on when you installed them first, not the rain yesterday. i know nissan's ecu will limit the revs to 2500 if the intakes move out of place or are not making good contact... check the MAF sensors, make sure they are installed properly and are getting good readings.

geo, i drove with these through spring when we had rain almost daily, and never had an issue... especially since u didnt hit any puddles, i dont see how it could be from water.

geosZ, there's a lot of material on this and possible solutions. Give the advanced search a try.

I also have the Injens, bought from another member here, and neither he nor I have experienced this.

Some say it has to do with proper installation, and some say it has to do with parking somewhere that the nose of the car is higher than the rear.

Either way, there are workarounds. Search the tech sections.

I think it's a vacuum leak somewhere. I'd say to reinstall the intakes, reset ECU and see if that does it.

op- was the MAF sensor wet? was the filter wet?

those 2 areas i would check first.

i personally use the HPS tubes and K&N drop-ins. no issue driving through storms where i could not see very well over 30mph and roads were like rivers.

I'm Shure the filters got wet. The sensors Mayb if I sucked a little water threw the tubes Mayb?

Thanx for the replies guys

rain? whats that...... sry we are hurtin for it here. :\

I would say there is definitely a leak somewhere. If the injen intakes sucked up a significant amount of water your engine would probably seize and likely fail to start altogether.

Hm yea deaf dint hydrolock. Does it
Hydrolock right away or after a few hours/days/weeks ext?

Oh and the intakes where installed about a month or so ago and no problems till yesterday in raid

Get your DTCs read. Possible related DTCs below.

DTC P0102/P0103/P010C/P010D - Mass air flow sensor circuit - Engine speed will not rise more than 2,400 rpm due to the fuel cut.

P0102/C - MAF bank 1/2 circuit low input - An excessively low voltage from the sensor is sent to ECM.
P0103/D - MAF bank 1/2 circuit high input - An excessively high voltage from the sensor is sent to ECM.

Possible cause:
• Harness or connectors (The sensor circuit is open or shorted.)
• Intake air leaks
• Mass air flow sensor damaged

SES light came on immediately after install? Did you check the install afterwards?

Yea and after 2 3 days car was fine. Drove good till the rain

Been there, done that. Injen is gone!!!

It's because Injen switched to dry filters... when the car sits in a humid / moist or rainy environment, the filters just soak up the water making it difficult for the car to breathe. This leads to the MAF's throwing errors and then all hell breaks lose.

But after the condensation or humid is done did your car run good? What if I get different filters?

Thanks oh and did u reset the battery?

I have the injens as well, but have had zero problems with them. I would say you have a leak or a MAF sensor issue. I've drove mine through 3-4 inches of water and its terribly humid here this summer and no issues.

Geo , has the light came back on since reset?

I like my stillen G3's because of where they sit... thats the number 1 reason why I went with them over any other intake... unless I drive through a 3 foot puddle, no water is getting anywhere near my filters

No no light back on and I did a nice run last night to make Shure the car is running good. So far knock on wood it's running perfect

In my experience... Yes. It took 4 hours of the car running in an idle fashion before I was able to drive it again (usually had to let it run in the parking lot of my job).

Different filters might work, I was so irritated with this problem I just dropped the bomb and got rid of them entirely. Before I got to this point, I did see K&N had a filer replacement that was an oiled air filter. As I stated though, I didn't go this route.

As for the battery, I did reset the battery to clear the engine codes after I was certain the filters were once again dry.

Neatly to say, since I got rid of the Injens there have been no negative experiences driving in the rain. :D

I was just going to suggest the above. I just bought some Injen's off a member here but haven't installed them yet. I figured replacing the Injen filters to K&N might be an improvement...so might end up doing that to avoid potentialdry filter problems

itll be alright when the filters dry out.... maybe look for some hydro shields

Yea ima change the filters for Shure theen

This thread inspired me to go Premium! :tup:

How so? :confused:

Not to go too far OT, but I guess just after re-reading the first post in this thread. The Z community is great!

:tup:

Ok update. So I have been driving the car all week and it is driving like a champ. It has been raining and the car has been sitting in my driveway. So I said let's give it a start and see what happens. Remember the car has been sitting. So I start it and bam same thing happens. So I open the hood and I see water comeing in from the hood on the sides and it runs on the filters. I guess that's the problem. I don't wanna get rid of the injens :(.

that's weird this happened to me last night too:shakes head: This is the 2nd time already. only happens when its raining though and when i park my car outside for couple of hours. but after a couple of mins giving it a run. It like a champ again. I dont get the SEL though. It does give you that hard choked though...

Does your Injens have hydroshields (pretty much a black panty hose cover) on them? This will at least bounce the water somewhere else other than the filter when you leave it sitting. It really does work because my Celica's CAI sits very slow and water do get splashed onto the dryflow filter once in a while. Heck, I even tested it going through a car wash. The surround was wet, but the filter felt dry.

http://www.clubrsx.com/graphics/00000001/CIMG1773.JPG

No I don't have any hydroshield I will invest in it for Shure. Thanks for the info

This just happened few weeks ago to another member, local friend of mine.

i have the hydro shields and water still got on the mafs car would bog over 3krpm

Then either your CAI is far lower than I thought, or water collecting in that area issue, or you're just splish splashing around DEEP puddles.

It could only handle splashes, but not puddles.

Doesn't the shield kind of defeat the purpose of have a long tube CAI? Not that its no longer colder air. I'm just thinking your adding restriction to the air flow by adding something over the filters and lowering possible overall hp gains. Hope everything works out George.

Hey ok I did a simple test. Two heavy rain days. Car parked both days just turned on after rain has stoped. One day I put towels around the two intakes where the factory boxes are so the water from the hood
Does not drip on my cones. (I'm gonna take pics so you guys can get a better idea where the towels where. )Turned the car on and it ran like new(oh and the towels where wet as he'll). The second test I dint put anything. Waited till the rain stoped turned car on same problem. So water sips through hood runs down the walls of the fender (inside part of the fender) and right on the cones. I will take the bumper off and see if I can get the cones from touching the fenders

ON my g37 i had injens and they worked fined for awhile then I would go into limp mode when my car was outside and it rained.. Switch to stillen (a little shitty fittment but no problems) 12 k miles no problem.

I don't know if this thread is still alive but this is happening to me twice now. First was when I finished washing my car and then today when I drove the car last night and it started raining. I parked the car on the driveway overnight cause it was wet and when I started this evening it was choking and all nights came on. I think I will get rid of this CAI. It's just not worth the hassle even if you don't drive the car on the rain you can't help it but sometimes it will rain.

Sounds hassle to me. You are stressed out every time it rains.:(


Sent from my iPhone using Tapatalk- faya baby!