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Old 08-15-2008, 02:14 PM   #1
BigElm
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Default 2008 STi Recall - Reflash

Quote:
To: All Subaru Dealers
From: Subaru of America, Inc.
Date: August 13, 2008
Re: WVE-15 ECM Reprogramming Service Program
2008 Impreza WRX STI
SOA has initiated a Service Program (WVE-15) to reprogram the Engine Control Module (ECM)
on certain 2008MY Impreza WRX STI vehicles.
Under certain harsh driving patterns, specifically when repeatedly or continuously operating the
engine above the “red-line” (RPM above 6,700), abnormal combustion could occur resulting in
serious internal engine damage in the form of broken piston ring lands. This abnormal
combustion condition is the result of an “over lean” fuel mixture caused by a combination of fuel
cut activation and high turbo boost. To prevent this condition from occurring, Subaru has
developed a modification to the Engine Control Module software logic that will improve
combustion management above “red-line” engine speed. This revised logic will not adversely
affect peak vehicle performance.
General information concerning this Service Program:
• The WVE-15 Service Program Bulletin will be posted on the Techinfo.Subaru.com
website on Thursday, August 14th. The Campaign Bulletin contains additional information
concerning identification of affected vehicles, repair and claim submission procedures.
• On or around August 14, 2008, dealers will be sent affected VIN lists by their Area
Service Office. Dealers are requested to immediately perform this campaign on all
affected vehicles in dealer inventory. Important: Some vehicles that appear on dealer
affected VIN lists may have already been updated by Subaru. Prior to performing
repairs, confirm coverage by using the Vehicle Coverage Inquiry in the Dealer
Communication System (DCS). Vehicles that have been updated by Subaru will
appear "completed" in DCS.
• CDS control numbers for this Service Program are currently available through DCS.
• Subaru will mail owner notification letters on or around August 15, 2008.
Reprogramming software:
The July 2008 SSMIII Software update was released by SOA on August 12, 2008 and contains
the reprogramming pack file needed to complete this Service Program.
Upgrade Version Numbers
• Software: 1.15.33.3
• Interface Box: 1.6.0
• Interface Box CF Card: 1.2.35
Pack File
22611AN351.pak. - 2008MY Impreza STI, ECM To prevent the abnormal combustion during fuel
cut and recovery condition by rev. limiter
Thank you for your cooperation in this matter.
Subaru of America, Inc
Source: Subaru Dealer (Trust me )
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Old 08-15-2008, 02:18 PM   #2
Clark_Kent
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Thanks for the info. The terrible stock ECM tune still isn't sorted? Wow.
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Old 08-15-2008, 02:26 PM   #3
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Quote:
Under certain harsh driving patterns, specifically when repeatedly or continuously operating the engine above the “red-line” (RPM above 6,700)
you can run the car (stock) over red line? is there no rev limiter on the STi? or are they talking about if you were in a higher gear and dropped it to a lower gear to quickly and the car revs past the limiter (since the limiter can't stop the car at that point)...
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Old 08-15-2008, 02:56 PM   #4
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There is Redline and then there is the fuel cut-off... can be two different values. Over redline will approach the fuel-cutoff and that is where some of the logic was rewritten as per the recall notes.

Obviously from a misshift you cannot prevent an "overrev"
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Old 08-15-2008, 04:11 PM   #5
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"This revised logic will not adversely affect peak vehicle performance."
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Old 08-15-2008, 04:57 PM   #6
law
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Quote:
Originally Posted by Mariano View Post
"This revised logic will not adversely affect peak vehicle performance."
Is that hard to believe? Power in the upper revs is not that much anyway and is tailing off.

If the work was to revise the fuel cut-off logic at the limiter, I don't see how this could really affect the peak performance since the peak range is nowhere near that limit
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Old 08-15-2008, 05:12 PM   #7
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Quote:
Originally Posted by law View Post
I don't see how this could really affect the peak performance since the peak range is nowhere near that limit
Agreed. Maybe a power/torque vs rpm graph would make it more clear.
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Old 08-15-2008, 06:07 PM   #8
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Quote:
Originally Posted by Richard L. View Post
Agreed. Maybe a power/torque vs rpm graph would make it more clear.
Indeed. With the stock turbo on the STI, you're better off shifting at about 6000 to 6500 rpms. Running the car to the rev limiter in every gear is actually slower.

In some cases, like autocross, it actually makes sense to spend some time at really high rpms- even banging off the rev limiter. If there's a section of a course where you will be on the rev limiter for 2 or 3 seconds, it's a lot faster to just do that than upshift and immediately downshift again.

Now, multiply "a couple seconds" on the rev limiter times a few times per run times a bunch of runs and it's easy to see how a few det events could weaken the ringlands and eventually kill them completely.
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Old 08-15-2008, 09:00 PM   #9
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Quote:
Originally Posted by remowgn View Post
Indeed. With the stock turbo on the STI, you're better off shifting at about 6000 to 6500 rpms. Running the car to the rev limiter in every gear is actually slower.
With respect to acceleration and shift points, that depends on the gearing. With the short geared 6spd ('04-'06), it made sense to redline 1st & 2nd, 6500 in 3rd, and ride 4th to 6700. With the longer geared 6spd, I'm sure this has changed quite a bit. I'd still say that redlining 1st and 2nd makes sense because you probably still put down more torque at 6500-6700 rpm in 2nd, due to gear multiplier, than 4xxx/5xxxpm in 3rd if you shift earlier at 6K.

Now, in regards to this reflash, a couple people on IWSTI have already gone to their respective dealerships and had this done. One problem that has been noted is that the AccessPort will no longer recognize the ECU after it has been reflashed (obviously they unmarried it first; i.e. it can't be reinstalled after Subaru's ECM update). Apparently, Cobb is getting their car flashed soon and will provide a fix.
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Old 08-15-2008, 10:50 PM   #10
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Well I am almost thinking that there may be an issue even with the Cobb maps since they are built on the base stock map. It may be safe to say that they will work the new fuel-cut logic into their current map set.

It could explain why we saw failures on Tuned as well as Stock cars.

Just a thought. I hope they dyno the new flash though...
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Old 08-17-2008, 09:20 PM   #11
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The regional tech rep is the one that shot down the repairs
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Old 08-18-2008, 02:40 AM   #12
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Quote:
Originally Posted by oldsparky View Post
The regional tech rep is the one that shot down the repairs
maybe you can go above the regional tech rep then.
did he actually ever come out and look at the car, or did they just send him pictures? seriously, push this issue. if what you say is true, and the full story, at least ask that out of goodwill they pay, at least, half the cost of the motor. Don't give up, raise hell. You have nothing to lose, anyway.
Oh, and ask for a denial in writing if they still won't do it.
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Old 08-17-2008, 11:10 PM   #13
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It says "certain 2008MY Impreza WRX STI vehicles." Anyone know which VIN numbers?

Thanks - Paul
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Old 08-18-2008, 12:32 PM   #14
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Quote:
Originally Posted by midlifecrisis View Post
It says "certain 2008MY Impreza WRX STI vehicles." Anyone know which VIN numbers?

Thanks - Paul
Model From To
2008MY Impreza WRX STI 8L809681 8L837138
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Old 08-18-2008, 02:06 PM   #15
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I'd love to know how they expect STI owners to get this information, other than on the forums. I never got a letter or anything.
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Old 08-18-2008, 03:44 PM   #16
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Quote:
Originally Posted by waktasz View Post
I'd love to know how they expect STI owners to get this information, other than on the forums. I never got a letter or anything.
I haven't heard anything from my dealership either and I'm in the affected range. I just downloaded the PDF from Subaru's Techinfo site (which the customer shouldn't have to do). I just figure that SCI hasn't gotten around to notifying us yet...
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Old 08-18-2008, 05:08 PM   #17
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Just got this email

Dear Subaru Owner:

We would like to thank you for selecting a 2008 Subaru Impreza WRX STI. At Subaru, we take pride in our products and are committed to your continued satisfaction. During a quality review, we discovered that under certain harsh driving patterns, specifically when repeatedly or continuously operating the engine above the "red-line" (RPM above 6,700), abnormal combustion could occur resulting in serious internal engine damage in the form of broken piston ring lands. This abnormal combustion condition is the result of an "over lean" fuel mixture caused by a combination of fuel cut activation and high turbo boost. To prevent this condition from occurring, Subaru has developed a modification to the Engine Control Module software logic that will improve combustion management above "red-line" engine speed. This revised logic will not adversely affect the peak performance of your vehicle.

WHAT WE ARE ASKING YOU TO DO PROMPTLY
We suggest that you schedule an appointment with your Subaru dealer as soon as possible to have the Engine Control Module software reprogrammed to help maintain your vehicle's optimum performance and possibly prevent serious engine damage. Your Subaru dealer will perform this repair at no cost to you. In the meantime, please maintain your vehicle's engine speed below 6,700 RPM until this repair has been performed. Please present this letter to your Subaru dealer on the day of your service appointment.

HOW LONG WILL THE REPAIR TAKE?
The approximate time to perform this repair is 40 minutes. However, it may be necessary for you to leave your car for a longer period on the day of your scheduled appointment to allow your dealer flexibility in scheduling other appointments.

MODIFIED VEHICLES
Aftermarket Engine Control Module (ECM) software changes may adversely affect the proper operation of your vehicle and prevent your Subaru dealer from performing the ECM software logic update described in this e-mail. If your Subaru dealer is unable to perform this update as a result of non-authorized modifications
made to your vehicle's ECM, Subaru will not be able to assist you until your vehicle is returned to its original condition. If this software update is not performed or if other aftermarket modifications cause similar engine damage, Subaru will not be able to assist with any resulting repair costs.

IF YOU NEED FURTHER ASSISTANCE
To locate your nearest Subaru dealer, you can access our web site at www.subaru.com and go to the dealer locator function. Or, you may call us at
1-800SUBARU3 (1-800-782-2783) during normal business hours. Please call or write us immediately if the dealer fails or is unable to complete this procedure free of charge.

Your continued satisfaction with Subaru is important to us. This update is intended to assure your vehicle's optimal performance. We appreciate your understanding in this matter and regret any inconvenience this may cause you.

Sincerely,
Subaru of America, Inc.
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Old 08-18-2008, 05:27 PM   #18
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^ yep. me too. Are we having fun, yet?
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Old 08-18-2008, 05:29 PM   #19
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I've been having fun. Sold my STI timebomb a month ago
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Old 08-18-2008, 05:42 PM   #20
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but but but..it's not a timebomb any more with this fix..right?



right?


right??!?!??
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Old 08-18-2008, 06:57 PM   #21
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That e-mail's text is directly from the bulletin PDF. What I find funny is the bit about "specifically when repeatedly or continuously operating the engine above the "red-line" (RPM above 6,700)". I know that my '08 stops dead at 6700 (no pun intended ) from the rev limiter. Not sure how you'd operate "above" it without mechanically over revving. I can see how the autox guys would really want this flash though, since they are more likely to bounce off the rev limiter before a corner than your average daily driver or road course driver.

Last edited by Digitalfiend; 08-20-2008 at 08:57 AM.
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Old 08-18-2008, 07:55 PM   #22
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Looks like I got my letter in the mail... time to call the dealership and get this re-flash..
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Old 08-19-2008, 01:35 PM   #23
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I received my letter in the mail yesterday. I was hoping to put the first trip to the dealership off until the 3,000 mile service, but I'm only at 1,765 miles currently and I don't see reaching 3,000 before November.

I'm torn. Between the 2008 STI engine and paint chipping problems and the upgrades to the 2009 WRX, it's real tempting to forego the new wheels and tires that I was going to pick up for the winter and replace the STI with something different. I don't think that would be any worse out of pocket than the wheels and tires.
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Old 08-20-2008, 10:28 AM   #24
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Quote:
Originally Posted by Big_Ed View Post
I'm torn. Between the 2008 STI engine and paint chipping problems..
Are you having these problems?
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Old 08-20-2008, 01:49 PM   #25
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Quote:
Originally Posted by boxered View Post
Are you having these problems?
No, I haven't had either problem to date, but I had a complete 3M kit put on to protect the paint before I took delivery which kept me from picking it up for two weeks (various miscommunication between dealer and supplier) and cost me a few hundred dollars to address their problem. I haven't seen anything official from Subaru, so if I wasn't on this forum I wouldn't have known there was a problem and wouldn't have taken the preventive action that may be keeping the problem away.

I'm also barely out of the break in period, so I've been relatively gentle on the engine so far. I'm highly concerned about whether something is going to go wrong in the future and if Subaru will make it right. Reading about people's claims being denied at less than 10K miles isn't reassuring.
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