system too lean at idle?

M

mobomelter

Member

:

2004 Civic Si

• Sep 25, 2006

• #1

well my car has decided its going to be a pain in the ass and randomly throw codes and then make them disappear. I caught the codes at one point and they all had to do with system too lean at idle. I have a feeling its my cosmo racing sri or a blown maf. The car idles rough but other than that it runs fine. Should I try buying a real intake (Aem, Injen, K&N or something CAI) or should I buy a new maf?

 

T

tsunami

Member

Contributor

:

mazda3 5 door

• Sep 25, 2006

• #2

i would revert back to stock intake first and then if you are still having issues then i would change out your maf... its pretty easy changing an sri for stock. and i believe protophile has intakes for sale from simota (cai and sri) that a lot of members are having good luck with for a cheaper price then an aem or injen would be but better quality then an ebay intake...

 

M

mobomelter

Member

:

2004 Civic Si

• Sep 25, 2006

• #3

well aparently advance auto parts now carries a maf for 81 dollars that fits a 2005 3s. I work there so I might order just to see if its the right one since I can get a discount and send it back if its not the right one.

 

T

tsunami

Member

Contributor

:

mazda3 5 door

• Sep 25, 2006

• #4

worth a shot but i always revert to whats free instead of spending money... but thats just cause i am cheap.

 

M

mobomelter

Member

:

2004 Civic Si

• Sep 25, 2006

• #5

yeah I mean i've reset the code once now and I am hoping that if I just replace the maf I can get back a normal idle and that code will stop coming up.

 

T

tsunami

Member

Contributor

:

mazda3 5 door

• Sep 25, 2006

• #6

thats why i said just put your stock intake back on and if the idle is normal again its your intake, if its the same then its probably (90% sure) your maf..

 

M

mobomelter

Member

:

2004 Civic Si

• Sep 25, 2006

• #7

yeah i guess i could do that tomorrow since i am done with school early. I kinda hope its my intake since I want a good excuse to buy a cai.

EDIT: I just remembered how much of a pain in the ass it is to get that one piece for the breather hose out.

 

Last edited: Sep 25, 2006

T

tsunami

Member

Contributor

:

mazda3 5 door

• Sep 25, 2006

• #8

really.... ?? its got that push connector thing on it right? i don't remember it being a pain and i just had mine off and on at the begining of summer to clean the filter.

 

M

mobomelter

Member

:

2004 Civic Si

• Sep 25, 2006

• #9

with the cosmo racing one you have to take the little white piece out of the stock airbox. I now realize I should only buy from big name brands and stop being cheap lol.

 

T

tsunami

Member

Contributor

:

mazda3 5 door

• Sep 25, 2006

• #10

uh.... that sucks... and yeah spending more money first usually saves a head ache or two later.

 

M

mobomelter

Member

:

2004 Civic Si

• Sep 25, 2006

• #11

yeah because if the intake turns out to be the problem i have an 85 dollar paperweight. my other problem is trying to make all this little icons on the forums appear on my laptop....

 

T

tsunami

Member

Contributor

:

mazda3 5 door

• Sep 25, 2006

• #12

yeah they are on again off again for me all the time as well, i brought it up in the website help/feedback a while ago... maybe should do it again.

 

M

mobomelter

Member

:

2004 Civic Si

• Sep 25, 2006

• #13

well i put it on the code scanner and i got p2187. what did you do to fix the code on your car?

 

T

tsunami

Member

Contributor

:

mazda3 5 door

• Sep 25, 2006

• #14

i didn't it fixed itself...my idle is fine now... how long have you had it? if its been a while i read while researching my issue that it was from a evap selonoid valve or something... has to do with the emissions system and was a pretty popular failure for our cars... if you don't have to many mods i would take it in and see if they fix it under warranty

 

M

mobomelter

Member

:

2004 Civic Si

• Sep 26, 2006

• #15

i haven't had the intake on there that long maybe 2 months max. At this point I'm gonna try the stock intake tomorrow after school but I have a feeling that the intake isn't the problem.

 

M

mobomelter

Member

:

2004 Civic Si

• Sep 26, 2006

• #16

I just tried unplugging the battery and putting the stock intake back on. Drove for about 10 miles with no code but the same rough idle. I then unplugged the battery again and put the cosmo racing intake back on and still had a rough idle. The code is gone but the rough idle remains.

 

T

tsunami

Member

Contributor

:

mazda3 5 door

• Sep 26, 2006

• #17

the code will be back that has nothing to do with your intake... read the thread i started regarding that code and you will see what others have found from that ##...