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Old 01-15-2001, 11:06 AM   #1
FargoRS
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Member#: 419
Join Date: Oct 1999
Location: Fargo, ND, USA
Vehicle:
2002 WRX

Cool O2 Sensor replaced.....finally! Info + Rant

Hi Folks,

My 2001 Forester L was trouble free until about four months ago. I started smelling sulfur at various times when driving or exiting my car. The smell became worse over time so I did what a new car owner should do. I took it to the dealer. They put the car on the diagnostic scope and found no error codes or problems. They reset the ECU and sent me on my way.

The smell still persisted so I went back to the dealer and was shown a Subaru TBS that pointed fault to brands of gasoline that have a high sulfur content. I switched brands three times and it didn't help the problem. So I went back for the third time to have the car checked out. There was no check engine light and no error codes were found, so the ECU was reset and I was sent on my way again. Now I noticed a large drop in fuel economy.

This last week, I was returning to work and my car started to buck and run rough at idle. I quickly called the dealer for the earliest appointment which was next afternoon. On my way to the dealer, the car bucked and ran very rough. The engine died when I came to a stop. This happend several times. I had to keep the car in nuetral so it would idle which was very erratic. I barely made it to the service department...

I got a call later that day explaining that the O2 sensor was indeed bad. It was one of the sensors that was from a bad vendor batch beginning with a "9" on the serial number. Since the 2001 O2 sensor is on national backorder and the dealer didn't have any in stock, they used a 2000 year O2 sensor that was the same specs as the 2001. The only differnce was the length of the connector lead.

So, it appears that this is a larger problem that Subaru claims. I had to wait four months until my car physically broke down before it was repaired properly. I'm sure I also wasted some money on gas, getting 50 miles per tank less than usual. Additionally, my spark plugs are probabaly slightly contaminated from the rich running condition. I will have to have them checked next oil change.

I don't blame my service department because I know that their hands are tied until Subaru ok's certain warrenty work. But prolonging something like it's just going to go away is not good service pratice. I am not at all happy with SOA and I probably won't buy a WRX now if this is going to be the way they do business.

It's funny that this little Sensor can bring down the engine and make it inoperable. I'm almost scared to drive through a puddle of water now because my fragile O2 sensor might malfunction and stall me out. By the way, the 2000 sensor with the shorter connector lead is about $50 cheaper than the 2001 sensor...go figure??

Sorry I don't have the part number configuration details. If anyone has that information, it might be helpfull to others with this problem.

So, the good news is I got my car fixed for free under warrantee, but it took a lot of complaining, time, fuel cost, and finally breaking down to get it done.

Hope this helps....

Mike


[This message has been edited by FargoRS (edited January 19, 2001).]
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Old 01-15-2001, 11:31 AM   #2
M a t t
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i have a 2000 and my O2 sensor went out too. got it fixed under warranty and all is good.
 
Old 01-15-2001, 11:40 AM   #3
FargoRS
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Member#: 419
Join Date: Oct 1999
Location: Fargo, ND, USA
Vehicle:
2002 WRX

Cool

I remember reading your posts Matt..

Good Deal!

Mike
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Old 01-15-2001, 04:07 PM   #4
thehanna
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'00 RS
Blue

Post

As did mine in my 2000 sedan
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Old 01-15-2001, 10:31 PM   #5
FargoRS
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Vehicle:
2002 WRX

Angry

Looks like I spoke too soon today. Thought my car was fixed?? It has run great all weekend until tonight. Came home and was putting it in the garage...started idling erratic again. Won't idle in gear, Arrghhhh!! Think I'll drop it off tomorrow and take a new LL Bean H6 Outback hostage until my car is fixed right...

Mike
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Old 01-15-2001, 10:34 PM   #6
M a t t
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haha, right on! H6, hmmmmmmmm....
 
Old 01-19-2001, 07:56 AM   #7
FargoRS
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Member#: 419
Join Date: Oct 1999
Location: Fargo, ND, USA
Vehicle:
2002 WRX

Unhappy

O2 sensor number 3 installed. Hope this one lasts longer than the 2nd which lasted three days. I got SOA involed for what ever that is worth. At least they have a case number and are monitoring the dealership repair now. I tell you, having a new car with a warrantee is not as great as I thought.

Mike
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Old 01-19-2001, 08:23 AM   #8
pleiades
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ttt
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Old 01-19-2001, 10:21 AM   #9
FargoRS
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Location: Fargo, ND, USA
Vehicle:
2002 WRX

Question

What's with the triple Ts: ttt

Seen that a couple of times now...I must have missed something

Mike
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Old 01-19-2001, 12:53 PM   #10
Miracle Worker
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2000 2.5 RS Sedona
Red (Chicken Katcher)

Post

My 2000 RS's O2 sensor just went after 8 months. They said they are having problems with the Bosh sensors in the Manual's.
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Old 01-19-2001, 04:35 PM   #11
FargoRS
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Location: Fargo, ND, USA
Vehicle:
2002 WRX

Angry

Arrrggghhh!!!!

My third O2 sensor is already dying one day after installation. The sensor P/N 22641AA01A from a 2000 model doesn't seem to be the one to use on the 2001. It is either the sub freezing weather, or one of my other systems is damaged and all the O2 sensors in the world won't fix my problem. I Have to wait till Monday for the "right one" thats been on back order...told the parts guy to Fedex it next day air

Frustrated beyond swearing, I called SOA's customer service. I was suprised that they offered me a little compensation for my troubles plus $30 a day for a rental car. That did take the sting out of this, but I still want my car 100% and I'll use the ND state lemon law if this continues. It states that I only have to give them 4 attempts to correct this within the first year of ownership.

Almost went in the poor house today with a new Audi A4 Quattro.....but I couldn't keep a straight face if they asked me about my Subaru

I noticed not a lot of people have an oppinion or experience with this matter. Anyone else have any incite on this?

Mike

[This message has been edited by FargoRS (edited January 19, 2001).]
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Old 01-19-2001, 04:43 PM   #12
8Complex

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I have heard that supposedly when the O2 sensor goes bad, it screws up the ECU and they have to replace that as well to fix it. I rad it on the board, but I don't remember when or by whom it was posted.

Which O2 sensor was it? I drive real hard sometimes and get the sulfur smell, and I always get really crappy gas mileage. Time for an ECU reset and go back to stock intake for a while, I guess. *shrug*
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Old 01-19-2001, 05:04 PM   #13
FargoRS
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Location: Fargo, ND, USA
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2002 WRX

Post

The front sensor is the O2. I think the back one is a Air/Fuel sensor. Service claims that the ECU for the 5spd gets replaced, not the Auto. What ever difference that would make?? :P

Mike
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Old 01-19-2001, 06:01 PM   #14
Kevin Thomas
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1989 1989 XT6

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Now Im confused. I thought that there are two O2 sensors. One before the cat which monitors the air/fuel ratio of the exhaust gases and that the 2nd O2 sensor, that is after the cat, monitors the catlytic converter for its efficiency.

Am I missing something here? I'm learning something new everyday here.

[This message has been edited by Kevin Thomas (edited January 19, 2001).]
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Old 01-19-2001, 06:10 PM   #15
8Complex

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They're both O2 sensors. The one before the cat. is for the reading and the one after is to make sure the front one is working right. They might call them differently, but that is what the are/do.

The difference is that the MY00/01 Imprezas have a wide-band sensor up front instead of a standard sensor.
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Old 01-19-2001, 09:52 PM   #16
FargoRS
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Location: Fargo, ND, USA
Vehicle:
2002 WRX

Cool

You guys are right. The sensor on the back of the CAT is other O2 sensor. It makes sure that the CAT is working properly. I guess it's more of an emissions sensor than a management sensor like the front one.

I'm glad I said (I think) that it was a A/F sensor That saved me right? With all they reading and research I'm doing on O2's...I'm getting all confused. I'm no mechanic that's for sure

Mike

[This message has been edited by FargoRS (edited January 19, 2001).]
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