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Old 12-03-2012, 12:18 PM   #1
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Exclamation Recall # WQC39 - ECM Reprogramming for Coolant Thermostat

I just logged into my.subaru and happened to see the following recall listed for my BRZ. Has anyone taken their car in for this update?


Service Program WQC-39
Engine Control Module Reprogramming
Vehicles Registered in the States of
CA, CT, MA, MD, ME, NJ, NY, OR, PA, RI, VT, WA

Dear Subaru Owner:

We would like to thank you for your selection of a Subaru vehicle. At Subaru, we take pride in our products and are committed to your continued satisfaction.

Subaru has developed a modification to the Engine Control Module software logic to improve the monitoring parameters within the On-Board Diagnostic (OBDll) system for the engine coolant thermostat. This correction ensures that should there be an abnormal condition (i.e., the engine coolant does not reach or maintain the proper operating temperature), the “check engine light” will illuminate. The proper illumination of the “check engine light” is needed to alert you that corrective action may be required.

This software change has no effect on fuel economy or vehicle performance
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Old 12-03-2012, 12:26 PM   #2
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I just checked and there is nothing listed for my car. Maybe it's only for a specific VIN range.
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Old 12-03-2012, 12:49 PM   #3
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I just checked and there is nothing listed for my car. Maybe it's only for a specific VIN range.
That's weird, maybe your dealer did it already.

This is a Subaru-wide recall in certain states. Not a BRZ-specific thing.
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Old 12-03-2012, 12:56 PM   #4
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My car has not been back to the dealer since I picked it up in Sept. which is why I was stating it could be a specific VIN range that is affected.
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Old 12-03-2012, 01:00 PM   #5
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It's there for me, vin 00920
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Old 12-03-2012, 01:02 PM   #6
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Any word of this for the FRS?
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Old 12-03-2012, 02:28 PM   #7
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I just created and checked MySubaru page and I don't show this either. My BRZ is registered in Oregon and my vin is in the 3400 range. Subaru might be rolling this recall out slowly so as to not overwhelm dealers. It would be nice to get the latest ECU flash and see if it evens out my occasional wonky idle.
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Old 12-03-2012, 03:45 PM   #8
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Its just a logic check on how quickly the engine is warming up. Cold weather affects, of course, how long it takes the engine to warm up.

If you drive smartly and don't let your car idle, this is probably an non-issue.
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Old 12-03-2012, 03:52 PM   #9
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Seems to have nothing to do with idle CEL issue.
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Old 12-03-2012, 03:58 PM   #10
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Quote:
Originally Posted by mhigham View Post
Its just a logic check on how quickly the engine is warming up. Cold weather affects, of course, how long it takes the engine to warm up.

If you drive smartly and don't let your car idle, this is probably an non-issue.
I don't understand. Are you saying it is better if we don't idle to warm up the engine?
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Old 12-03-2012, 04:12 PM   #11
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I don't understand. Are you saying it is better if we don't idle to warm up the engine?
I never idle to warm up the engine because you're only warming up the engine and not the trans. You're better off starting the car and taking it easy for the first few miles until the engine and trans are up to temp.
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Old 12-03-2012, 05:23 PM   #12
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Corporations do secret things.

Like not issuing a TSB or recall. Instead they tell all dealerships to reflash the ECM to fix the idle condition when they come in for the mandatory Thermostat fix.

Some even go so far as to call it a flash for the thermostat when in fact it is really for the idle, especially if they make a minor change to the Thermostat setting, they can can the patch anything they like.

You really never know what a corporation will do.

Just hope the is a patch fr the idle problem along with the Thermostat setting.

Anyhow, from what I understand you still need the VVT components to be replaced and the flash is only a bandaid.
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Old 12-03-2012, 05:37 PM   #13
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Quote:
Originally Posted by Sigh-on-Rice View Post
I don't understand. Are you saying it is better if we don't idle to warm up the engine?
Yes. The car warm up much faster in 3 minutes of calm driving than it will in 10 minutes of idling.

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I just checked and there is nothing listed for my car. Maybe it's only for a specific VIN range.
I have this under Recalls in MySubaru. VIN 02883, located in MD.
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Old 12-03-2012, 05:37 PM   #14
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Hmm wonder why it's just these states. I wonder if there is more going on with this update that is not being shared with us. I see some strict states when it comes to emissions listed there.

Maybe we don't pass an OBD II with one cat if we change our exhaust system.
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Old 12-03-2012, 05:39 PM   #15
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There is a flash provided at dealerships which raises idle rpms. I think up to minimum of 800rpm without dipping lower.

Quote:
Originally Posted by Razz View Post
Corporations do secret things.

Like not issuing a TSB or recall. Instead they tell all dealerships to reflash the ECM to fix the idle condition when they come in for the mandatory Thermostat fix.

Some even go so far as to call it a flash for the thermostat when in fact it is really for the idle, especially if they make a minor change to the Thermostat setting, they can can the patch anything they like.

You really never know what a corporation will do.

Just hope the is a patch fr the idle problem along with the Thermostat setting.

Anyhow, from what I understand you still need the VVT components to be replaced and the flash is only a bandaid.
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Old 12-03-2012, 05:41 PM   #16
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So this is not showing up on my my.subaru, vin is 0911 car was bought in MA, but is registered in VA.

Anyone know if they are only listing certain states due to expected temps, or because of issues on ones that were delivered to certain places?
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Old 12-03-2012, 08:34 PM   #17
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I just check mysubaru and no recall is listed. my Vin is later in the 604000 range , but am in NJ, one of the states listed.

But....This correction ensures that should there be an abnormal condition (i.e., the engine coolant does not reach or maintain the proper operating temperature), the “check engine light” will illuminate. The proper illumination of the “check engine light” is needed to alert you that corrective action may be required.


Do we really need Subaru to modify the ECU to encourage the check engine light. Doesn't this car have enough of those already!
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Old 12-03-2012, 09:19 PM   #18
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I just check mysubaru and no recall is listed. my Vin is later in the 604000 range , but am in NJ, one of the states listed.

But....This correction ensures that should there be an abnormal condition (i.e., the engine coolant does not reach or maintain the proper operating temperature), the “check engine light” will illuminate. The proper illumination of the “check engine light” is needed to alert you that corrective action may be required.


Do we really need Subaru to modify the ECU to encourage the check engine light. Doesn't this car have enough of those already!

Who knows, maybe they included the binaries for the CEL idle fix without mentioning it. This is probably a smart idea. Reducing the CEL problems without making a giant deal about it by covering it up with this engine coolant problem.
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Old 12-03-2012, 09:19 PM   #19
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I actually have an appointment tomorrow in CA. I'll let you know if I notice anything different with my brz. I don't have any issues with CEL at the moment. But I do have HPFP chirping.
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Old 12-03-2012, 09:42 PM   #20
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Recall is listed for mine VIN 261. I've had no CELs or any mechanical issues. I'll be bringing in soon for GPS fix and rear tail condensation also.
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Old 12-04-2012, 03:28 PM   #21
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Anyone know if this is the latest reflash already included in ECUTek's latest release?
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Old 12-04-2012, 03:34 PM   #22
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Hmm wonder why it's just these states. I wonder if there is more going on with this update that is not being shared with us. I see some strict states when it comes to emissions listed there.

Maybe we don't pass an OBD II with one cat if we change our exhaust system.
Hm, it's not just cold states then is it? Are these all the CA emissions states? I know Maryland has the same emissions reqs as CA, we just don't have that CARB and smog bull**** here (to my knowledge); VEIP in MD is just an ODBII scan for emissions.
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