Check Engine Light

[RedLined]

Hey guys i took out the two hoses that connected to the airbox and replaced the filter. It sounds great but now my ce light is on. Has anyone else experienced this problem? Also, sometimes my car will ding a few times and then the lock on the car symbol will come on and the service vehicle soon message. I disconnected the battery after i changed out the filter so i don't think thats the problem. I'm going to call my dealership and schedule an appoinment for my car on friday, but if anyone can tell me whats wrong, and how to fix it, that would be great.

[CobaltRacer]

Correct me if I'm wrong.. but all you did was disconnect the hoses from the stock airbox and put in some higher flow filter? Those hoses are in that air box for a reason.. Thats probably the source of your CEL

[RedLined]

Originally Posted by CobaltRacer

Correct me if I'm wrong.. but all you did was disconnect the hoses from the stock airbox and put in some higher flow filter? Those hoses are in that air box for a reason.. Thats probably the source of your CEL

Why don't you tell that to everyone that has done that, and is planning to do that. And the hoses aren't in the air box, they lead to it from the inside of the fender. If removing the hoses that led to your air box, or even the box for that matter, would set off a cel light, then everyone would complain when they got an aftermarket intake. When i asked the service department manager about it, he said it was probably emessions related, but i doubt it.

[JPK]

First ride in my car after putting the K&N filter in it I got the CEL. After I stopped, I unplugged the MAF (I think that's what it is) on top of the airbox and plugged it back in and when I started the car, no light and it hasn't come back since.

[Vita]

go to an autoparts store to see what the code is, i think it will be system running too rich. i'm going to unplug the maf sensor as was stated above, but i've reset the code and it keeps coming back on, when i'm cruizing on the freeway...

doesn't make sense that adding more air will cause the computer to add TOO MUCH fuel, i wonder why it would be running rich. anyone else with an airbox removed have this issue?

[CobaltRacer]

On most intakes I have installed, a hose is typically plugged into a nipple on the intake pipe and then an air sensor is plugged into it as well.. Do you have any pictures?

Double check to make sure everythings sealed properly and the sensors are all in tight.. make sure they aren't dirty..

[xtremesc2]

Originally Posted by Vita

go to an autoparts store to see what the code is, i think it will be system running too rich. i'm going to unplug the maf sensor as was stated above, but i've reset the code and it keeps coming back on, when i'm cruizing on the freeway...

doesn't make sense that adding more air will cause the computer to add TOO MUCH fuel, i wonder why it would be running rich. anyone else with an airbox removed have this issue?

i got the exact same thing after removing my airbox, it comes and goes.......but i havent seen it in quite some time, and it hasnt effected my gas mileage, at leaset not much if any.

[Vita]

i figured it's relearning things, but i've gone through 1/4 tank of gas with only 40+ miles on the trip... i'll be double and triple checking AGAIN that everything is connected properly, so hopefully it clears up. i have gotten rid of the codes, and held my brake pedal down while i smoked a ciggarete slowly to try and reset the computer (with the battery disconnected), but it came back.

[Vita]

here is an explanation of the code

P0172 - System too Rich (Bank 1)
when air fuel ratio feedback is stable after engine warm up, fuel trim is considerably in error on the LEAN side (2 trip detection logic)

must be the MAF

[John]

from what youre saying, you have created a vacuum leak, which makes the car run rich and sets the ses light. try plugging whatever line you disconnected, see if that helps.