Open air intake FAIL.. slow/suffocating, check engine, and all the good stuff.. help!

[EUROaleksey]

here's a pic of a setup..



k&n filter... matt's heatshield.. maf sensor is... THERE..

i took it out on a street, the wooooshh is sweet, but its SO MUCH slower now its rediculous, as if my turbo was suffocating.. after 3k rpms im getting almost nothing...

after a mile of driving my check engine comes on...

help!!! what can it be??

[pOrKcHoP07]

Re-check all your work and make sure nothing was left out. Also, when installing the intake, its good to let it idle for 10-15 minutes so the computer can adjust for airflow...

Prolly the MAF isn't seated right, which is why you got a check engine light and a sluggish engine?

[phantom b6]

Yeah I've got an open air intake it is perfectly fine

[trueno429]

is there a DIY anywhere on this?

[AudiA4Turbo22]

did u care to check whether or not ur heatshield was crushing a hose? or did u check if ur n75 plug came off or if ur n80 is disconnected?

[EUROaleksey]

GUYS!!! LIMP MODE???

how do i reset everything?..

[starfriend]

clear codes in vagcom or disconnect battery for a few minutes i think.. i know the last one clears just about everything ;)

[ThatGuyAlex]

WOW you have bolt down coilpacks. Have those ever took a shit on you?

[EUROaleksey]

connected obd-II.... Solenoid A valve malfunction...

what can it be? i check everything.. no leaks, all connectors are fine... wtf is solenoid A?..... my N75 is 3 months old, my diverter is fine too... what other valves are there? particularly "solenoid A"?

it only happened right after i got the intake in.... helppppp dudes.. My christmas tree just isnt the same without powa.. lol... :(

Alex, no... my stock ones did.. these ones are hitachi-E.... people recommended them here back in a day.. wokred fine since.. for 2 years now i havent had an issue..

[inaforest]

I have the same k&n intake. I drove it for about ten minutes with no check engine light and then it came on. I turned it off and on a few times but that didn't help. I unplugged the positive on the battery for ten minutes, plugged it back in, and I haven't gotten a CEL since. I don't have an n75 or most of the other things you do, but give that a try and it should hopefully work.

[phantom b6]

I've done this a few times... I put an open filter on the stock TIP just by removing the air box and putting it on after the MAF.

Then I re-did the whole intake with an APR TIP and I've never had a problem. I'm pretty sure you have a vacuum leak somewhere. Check all the lines running to the TIP

[ThatGuyAlex]

Alex, no... my stock ones did.. these ones are hitachi-E.... people recommended them here back in a day.. wokred fine since.. for 2 years now i havent had an issue..

Ya i have heard that from people too. I guess thats my new choice when mine go out.

[romell]

how much did all the parts cost for this open air filter intake mod... and for those of you guys who have this mod done.. does the car run sluggish?

[inaforest]

how much did all the parts cost for this open air filter intake mod... and for those of you guys who have this mod done.. does the car run sluggish?

I think I got mine for $75? and it felt a little bit more responsive, but that could very well have just been in my head. It definitely DID NOT feel more sluggish after.

[Five1ohA4]

k&N filter? I know these filters are have alot of oil and are pretty wet when taken out of the packaging. Did you install the filter right after you opened it or did you let it sit out over night to let the oil dry a little bit. Im just wondering if maybe some of the oil from the filter made its way onto your MAF sensor.

[romell]

inaforest.. what did you have to buy and is it a DIY or have somone who knows wtf they are doing help you... like is it idiot proof? any write up? or anyone local want to help me.

[inaforest]

inaforest.. what did you have to buy and is it a DIY or have somone who knows wtf they are doing help you... like is it idiot proof? any write up? or anyone local want to help me.

I bought the K&N cold air intake, which is basically just a filter on the MAF. I had a few difficulties. First, the instructions from K&N were quite possible the most poorly written instructions I've ever seen in my life and the pictures didn't help. But that was the first mod I ever did, so I didn';t know my way around the engine bay. Secondly, since I didn't order it, I got one for a "b6 a4 2001-2002.5" and I have a 2004. I didn't know about any changes from 2002 - 2003, so I went ahead with the install. The only two issues I had which, I assume, were contributed to that, were that the heatshield now only has one mounting point, but with a few nuts and lock washers, it holds. Secondly, the mount for the U bracket that holds the filter in place wasn't angled correctly so it took a vice and a BFH to get it into place. As stated before, I got a CEL, but that went away after I disconnected the battery for a while.

Also, stupidly and n00bish, I put my MAF back on backwards and threw some code for that. It took me about three seconds to realize what I did wrong ahahaha

[Killerteve]

I got an AEM Dryflow for like $48 from summit racing. Flow as good or better than the K&N and never needs oiling. I plan on mounting to MAF when installing my BT kit. The one other thing you might need is a small filter to put in the secondary air system when you Remove the stock airbox.

[inaforest]

the K&N came with the second filter for the oil breather.