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Old 11-11-2012, 07:44 PM   #1
jml281
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Default Check engine and traction control lights came on

I have a 2009 WRX. When I went to start it today, the CEL and traction control light came on solid. The cruise light started blinking. I shut it down but heard a fan still running, so I popped the hood and found this blower going until I disconnected the harness from it. The car is still driveable and I'm going to make an appointment to bring it into the dealer.

My question is, what is this blower and what does it do? It's to the right of the AC compressor, in front of the oil fill cap.
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Last edited by jml281; 11-11-2012 at 09:11 PM. Reason: Add pic
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Old 11-11-2012, 09:01 PM   #2
tazswing
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Search "air pump" and I think you will find what you want.
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Old 11-12-2012, 03:55 PM   #3
knuckles27
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Default same thing with me

less than 24 hours after buying a used 2009 WRX the Check Engine Light came on with the traction control light and cruise is blinking. I brought it to the dealer (Subaru Dealer) and they said it was my SPT exhaust giving it a falso positive. They beleive the previous owner had an access port with a tune. They have ordered me a new access port and will re-tune my car next week (Nov 19th 2012). I will keep you posted. I will also look for a fan running under the hood tonight.
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Old 11-12-2012, 04:37 PM   #4
the suicidal eggroll
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Does nobody get their codes read anymore?

Go to Autozone and tell us what the code is, we can't do anything until you do.
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Old 11-12-2012, 04:53 PM   #5
AliBenn
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^^^^not unless its a freakin app on some smart phone.....face it. nobody, does **** unless its an instantaneous fix and/or gratifacation.........i really feel sorry for these people that have never gotten their hands dirty and just punch keys......
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Old 11-12-2012, 04:56 PM   #6
omega145
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I had the same problem and it was first related to a blown intercooler and then a problem with either the TCM and/or Valve Body. Traded in the vehicle so wasnt able to find out what the direct relation was.
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Old 11-13-2012, 06:52 AM   #7
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I did not think to get it coded myself since I brought it the Subaru dealer I bought it from. I will stop at an autozone tonight and have them code it out. I did not hear a fan as noted in the first post on this thread.
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Old 11-13-2012, 08:25 AM   #8
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not quite sure why your air pump continued running but like other people said unless you provide us with a code we can't even make an educated guess on what the issue is
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Old 11-14-2012, 07:15 AM   #9
knuckles27
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Went to AutoZone last night. I left the ticket in my car but I am pretty sure the code was P0240 for the cat. This is right in line with the Subie dealer thing the SPT exhaust was causing a false positive. They are installing an Access Port and tuning the car on Monday.
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Old 11-14-2012, 11:27 AM   #10
IA Performance
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Quote:
Originally Posted by knuckles27 View Post
Went to AutoZone last night. I left the ticket in my car but I am pretty sure the code was P0240 for the cat. This is right in line with the Subie dealer thing the SPT exhaust was causing a false positive. They are installing an Access Port and tuning the car on Monday.
It sounds like the car has an aftermarket Downpipe since a catback SPT exhaust should not affect the p0420 Catalyst efficiency code. The AccessPORT will let them deactivate the light.

Food For Thought
Depending on your local emissions it may not be a bad idea to take it in for testing at Motor Vehicle to make sure it passes with the stock DP. This is in assumption the car has a stock DP with both cats in it. I failed Colorado emissions with an aftermarket DP and had to install a factory DP to pass. If your factory DP + AccessPORT Tune does not pass, then you are looking at a spendy bill to get it to pass. Better to act on it now, while the dealership is still held accountable, versus 12 months from now when emissions may be due and you are on your own financially.

Stephen@iaperformance.com

Last edited by IA Performance; 11-14-2012 at 11:36 AM.
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Old 11-14-2012, 11:39 AM   #11
IA Performance
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I found this gem while searching catalyst efficiency codes. I can't say I "love" the video, but he has some ideas that may work. Any how, it's worth sharing since it involves the p0420 code:

Stephen@iaperformance.com
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Old 11-14-2012, 11:44 AM   #12
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What the **** did I just watch?
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Old 11-14-2012, 12:31 PM   #13
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Quote:
Originally Posted by AliBenn View Post
^^^^not unless its a freakin app on some smart phone.....face it. nobody, does **** unless its an instantaneous fix and/or gratifacation.........i really feel sorry for these people that have never gotten their hands dirty and just punch keys......
Here you go, problem solved haha.

Amazon.com: Bluetooth Car Code Reader Compatible with Android / Droid / Torque: AutomotiveAmazon.com: Bluetooth Car Code Reader Compatible with Android / Droid / Torque: Automotive
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Old 11-14-2012, 01:21 PM   #14
knuckles27
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Quote:
Originally Posted by IA Performance

It sounds like the car has an aftermarket Downpipe since a catback SPT exhaust should not affect the p0420 Catalyst efficiency code. The AccessPORT will let them deactivate the light.

Food For Thought
Depending on your local emissions it may not be a bad idea to take it in for testing at Motor Vehicle to make sure it passes with the stock DP. This is in assumption the car has a stock DP with both cats in it. I failed Colorado emissions with an aftermarket DP and had to install a factory DP to pass. If your factory DP + AccessPORT Tune does not pass, then you are looking at a spendy bill to get it to pass. Better to act on it now, while the dealership is still held accountable, versus 12 months from now when emissions may be due and you are on your own financially.

Stephen@iaperformance.com
Thanks IA. I think it does have an aftermarket DP. How can I tell? Pretty sure everything else is stock. I am checking out your website for new toys.
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Old 11-14-2012, 02:56 PM   #15
AliBenn
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Quote:
Originally Posted by s2ktosti View Post

should of known!!!

someone needs to post a pix of all those fat people with a monitor in front of their faces from the movie WALL-E.
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Old 11-14-2012, 11:58 PM   #16
jml281
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Thanks, you guys gave me the answer to my question, it's the secondary air pump. The dealer wanted an arm and a leg to fix it, so I fixed it my way. Walked over to the sales floor and found a 2013 STi looking for a new home.
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Old 11-15-2012, 07:46 AM   #17
knuckles27
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Quote:
Originally Posted by jml281 View Post
Thanks, you guys gave me the answer to my question, it's the secondary air pump. The dealer wanted an arm and a leg to fix it, so I fixed it my way. Walked over to the sales floor and found a 2013 STi looking for a new home.
not fair
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Old 11-15-2012, 11:01 AM   #18
IA Performance
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Quote:
Originally Posted by knuckles27 View Post
Thanks IA. I think it does have an aftermarket DP. How can I tell? Pretty sure everything else is stock. I am checking out your website for new toys.
To verify if it has an aftermarket down pipe you should be able to do so with a quick visual. The key thing will be to determine if it is Catless or Catted. Catless is a 3" pipe the whole way through whereas a catted version will have a bulge at some point on the DP (most likely underneath the car).

Here is an example of what your stock one should look like, as well as an aftermarket catted version.

Depending on your local emissions standards, you may or may not pass with an aftermarket pipe. This was never a concern of mine while living in AZ, but a quick fail in Colorado opened my eyes a pinch. I now sport the stock DP on our shop Forester XT.





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Old 11-16-2012, 10:14 AM   #19
knuckles27
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thanks again IA. The bottom DP is virtually identical to mine. I will post back net week after my car is tuned.
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Old 11-16-2012, 03:11 PM   #20
NoGraffix
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Quote:
Originally Posted by knuckles27 View Post
Went to AutoZone last night. I left the ticket in my car but I am pretty sure the code was P0240 for the cat. This is right in line with the Subie dealer thing the SPT exhaust was causing a false positive. They are installing an Access Port and tuning the car on Monday.


IA you continued to mention the cat code P0420 but the OP posted P0240 which if I remember is a wastegate code for over boosting. This sounds like an issue of either a poor tune, no tune for an aftermarket downpipe, or possibly a failing bcs. Either way I just wanted to point out the little confusion on which code was referenced.
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Old 11-16-2012, 03:42 PM   #21
IA Performance
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NoGraffix - No mistake on my end nor your end. JML281's code reference is a bit vague. There is reference to the Cat as well as p0240. P0420 is for Catalyst Efficiency, which seemed to make the most sense given the details in post 1 and 9. A p0240 code would most likely of experienced fuel cut from over boosting. Fuel cut is quite dramatic, and usually freaks people out, yet no mention of it. I ran with the p0420 idea since p0240 symptoms were not mentioned. I could be wrong, but I do know the difference of the 2 codes.

The big question is: what does the little piece of paper on JML281's dash say

Quote:
I left the ticket in my car but I am pretty sure the code was P0240 for the cat
Stephen@iaperformance.com
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Old 11-16-2012, 08:27 PM   #22
SubeizRippin
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Quote:
Originally Posted by jml281
I have a 2009 WRX. When I went to start it today, the CEL and traction control light came on solid. The cruise light started blinking. I shut it down but heard a fan still running, so I popped the hood and found this blower going until I disconnected the harness from it. The car is still driveable and I'm going to make an appointment to bring it into the dealer.

My question is, what is this blower and what does it do? It's to the right of the AC compressor, in front of the oil fill cap.
I had the same lights on my 2011 WRX and it was a loose map sensor. Try looking at that and plug it in tight.
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Old 11-17-2012, 10:58 AM   #23
the suicidal eggroll
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Quote:
Originally Posted by SubeizRippin View Post
I had the same lights on my 2011 WRX and it was a loose map sensor. Try looking at that and plug it in tight.
Those lights come on for any CEL, of which there are literally hundreds. There's about a 99.9% chance that your solution has nothing at all to do with the OP's problem.
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Old 11-29-2012, 12:29 PM   #24
knuckles27
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Okay. I have had my car back for 7 days. Since the car has a turbo back exhaust they gave me a Cobb Access Port and did a stage 2 93 Octane tune. The car has ran great and I can notice the difference. It is much faster. MPG has only gone down 1.5 MPG to about 21. Car also passed CT emissions. \
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Old 11-29-2012, 01:23 PM   #25
NoGraffix
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Quote:
Originally Posted by IA Performance View Post
NoGraffix - No mistake on my end nor your end. JML281's code reference is a bit vague. There is reference to the Cat as well as p0240. P0420 is for Catalyst Efficiency, which seemed to make the most sense given the details in post 1 and 9. A p0240 code would most likely of experienced fuel cut from over boosting. Fuel cut is quite dramatic, and usually freaks people out, yet no mention of it. I ran with the p0420 idea since p0240 symptoms were not mentioned. I could be wrong, but I do know the difference of the 2 codes.

The big question is: what does the little piece of paper on JML281's dash say



Stephen@iaperformance.com

You are correct, until the OP can verify the actual code no one will be able to help. Fuel cut due to overboosting is quite dramatic and pretty unmistakable. There is more then enough info here to help the OP be the code 240 or 420
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