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Old 05-18-2002, 10:15 AM   #1
Jasno999
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Default Could a CEL be caused by TurboXS BOV?

My check engine light (CEL) came on today while I was driving. The only real engine mod that I have done is the addition of a TurboXS blow off valve. Had it on there for a while now.

After looking more into it I asume that the CEL only occurs when there is a problem with the emissions out of the car. SO I was thinking that since the BOV makes the engine run richer maybe it is messing up wone of the O2 sensors or something.

What do you guys think? Will it go away if I put the factory BOV back on?
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Old 05-18-2002, 10:47 AM   #2
Jasno999
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Please help me with this one. I am worried to drive my car.
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Old 05-18-2002, 12:00 PM   #3
Kenneth2000
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First off... did you pull the code? So that you know what it is? (It might be something totally un-related to your blow off valve)

If you did pull the code, what was it?

If it was related.... did you put your stock blow off back on, purely for troubleshooting purposes?
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Old 05-18-2002, 01:08 PM   #4
Jasno999
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Have not pulled a code cause I do not havea scanner. I need one where can I get one?

So I think I am going to put the old BOV back on and then bull the battery tomorrow and see if it comes back. The I guess I have to take it to the dealler.
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Old 05-18-2002, 01:58 PM   #5
nmyeti
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I've never seen a TXS bov cause a CEL. Pull the code and find out what it's saying. I'll bet it is something totally unrelated.

-Nathan
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Old 05-18-2002, 06:24 PM   #6
Baluchitherium4
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I had a TurboXS BOV on my car and it caused a CEL. It was the code for "right bank rich". I kept clearing it and the CEL kept coming back. I put the stock BOV back on and have never gotten that code again. It seemed to be much more driveable with the stock BOV also. Needless to say, I sold the BOV and will run the stock one for quite sometime.

Later,

Dale
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Old 05-18-2002, 07:02 PM   #7
nmyeti
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Quote:
Originally posted by Baluchitherium4
I had a TurboXS BOV on my car and it caused a CEL. It was the code for "right bank rich". I kept clearing it and the CEL kept coming back. I put the stock BOV back on and have never gotten that code again. It seemed to be much more driveable with the stock BOV also. Needless to say, I sold the BOV and will run the stock one for quite sometime.

Later,

Dale
Dale,
Thanks for the information.

As a side note, Phil and Mark both run the stock valve. On a WRX a BOV is just a sound mod.

-Nathan
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Old 05-19-2002, 01:56 PM   #8
Jasno999
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Yeah I did not pull the code but I think it was the BOV. I have no other mods done to the car. Plus I put the factory BOV back on and pulled the battery. So far no more CELs and it is running great.
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Old 05-19-2002, 01:57 PM   #9
Jasno999
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DO you guys think a 50/50 BOV would clear up this problem? And are the 50/50 BOVs loud?
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Old 05-19-2002, 04:21 PM   #10
KwanDDS
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Unhappy

I have a TbXS BOV. I've had it for about a month with no problems. I'd hate to give it though, its an awesome sound.

How long have you had it before the CEL?
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Old 05-19-2002, 04:30 PM   #11
nmyeti
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Quote:
Originally posted by Jasno999
Yeah I did not pull the code but I think it was the BOV. I have no other mods done to the car. Plus I put the factory BOV back on and pulled the battery. So far no more CELs and it is running great.

I know of a bunch of totally stock cars that had CELs. It could be anything. You have to pull the code to know for sure.

-Nathan
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Old 05-19-2002, 04:50 PM   #12
Subi-fied
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Quote:
Originally posted by Jasno999
DO you guys think a 50/50 BOV would clear up this problem? And are the 50/50 BOVs loud?
Put your stock Rec. valve back on and forget about the cool sound, unless you want to buy a stand alone...
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Old 05-19-2002, 06:54 PM   #13
Tuning Factory Inc.
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I used a Blitz BOV (full atmospheric and still do). No problems at all on my car or any other car that has installed one. I doubt it is the BOV that is the problem.
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Old 05-20-2002, 06:24 PM   #14
Jasno999
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well I put the stock back on and reset the ECU and so far no CELs.

(KNOCK ON wOOD)
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Old 05-20-2002, 06:42 PM   #15
eric m.
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i've had a TXS type H for over 8k miles with no CELs. maybe some cars are more sensitive than others, i dont know. did you try adjusting the BOV?
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Old 05-21-2002, 07:07 AM   #16
Jasno999
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Adjusting it in what way.

I am not using any washers and the valve remains closed at idle.
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