OEM softwear quesstion
 

is the stock softwear reliable. i talked to some friends who say that at high rpms, the car doesnt retard timing and causes knock? is this true or is the stock softwear completely fine. if its not i would be interested in getting a ecutek tune. i do track so i would love to get some inputs. thanks soo much for responses.

I would be VERY suspect of anyone making claims like that without logs to prove it.

some one was telling me this but i wanted to make sure. thanks for the input though :)

What year is your car?

The 2013 cars had the issue that is believed to cause the blown DI seals issue.

If your car is a 2014, you already have the updated ROM to solve the transient retard issue.

If the ECU detects knock, it'll pull back timing, but without logs I'd be very suspicious.

On 91 octane, it does indeed knock on stock tune. I'd have to ask @nelsmar if he has the logs from my car when we loaded the first few ROMs when we began road tuning, as I didn't have my tablet PC yet, so I don't have those logs. But, the logs did show knock detection detecting knock and the ECU pulling timing. But it wasn't that the ECU didn't pull timing, thus resulting in knock, like the OP was told by this anonymous "someone", but that the ECU detected knock and thus pulled timing.

My stock ROM was for the 2014 models, so I wouldn't have had the serious transient knock issue anyway.

Not saying it can't knock on the stock tune, but if it knocks it will pull back timing. The OP's post was asking about the ECU not pulling timing if it detected knock.

Didn't know my car came with a nice pair of underwear?

Definitely don't want any knock on my softwear ..

Actually, the OP is reminding me of a post I read a few months back. It was with regard to the very issue he is talking about - knock on the stock tune at high RPM's. In fact, @shiv or @jamesm could probably shed some light on this

The factory tune does indeed knock on 91 octane, and I've seen it knock on 93 octane as well. Most of this knock was at lower rpms 1600 - 3000rpm and with a fair amount of tip-in knock. It did not have knock issues at the high rpms.

The ECU will pull/retard timing if it is detecting knock, regardless of the rpm you are running at.

There have been a few significant factory ECU flash updates since the earlier models came out. You can bring it to a local dealership to have it flashed to the latest factory update if you have not done so yet. If you have a 2014 you should be good.

If you have installed an aftermarket intake, you may be running too lean depending on the intake. Modifications will need a tune the get the maximum benefit from them.

- Bob

If you want at some point, we are close enough that you can see how my car runs with @shiv@vishnu's tune on the OFT. We can also use it to log your car if you wish. The factory tune can be all over the place sometimes. I noticed the IAM drop a few times with the stock tune, but never with Shiv's Stage 1 or EL Stage2 E85 tunes.

I believe your answer is here, transient knock retard was not activated in early ROM's

http://www.ft86club.com/forums/showthread.php?t=50088


Depending on your fuel the stock tune knocks as per above post by Circuit Motorsports. You can also get some knock in 5000-7000 rpm WOT, yes FLCK tries to correct it but its better if you retard your timing so it does not occur in the first place.

Remember the engine must knock before the knock detector can sense it and then the ecu corrects it.

fixed that for you :D

Subaru will not bring the 2013 models up to date if your car is older than some line in the sand.

Subaru won't, but thankfully you don't have to rely on them to do that. If you've got ecutek, you can always flash your ECU to the latest ROM ;).

wear do i start ....LOL, having knock on softwear does sound scary :bellyroll:

That's ridiculous, are they trying to have to fix DI seal issues more?

They directly denied any "DI seals" issue and said they had not seen any cases of a repairs for the seals.

They will update for idle/stall issues which will update through the DI timing retardation update.

The most recent ROM they would install is ZA1JAOOC.

I do not believe that ROM has the transient retard fix in it.
I would just look, but I dont have a RR def file to use to examine it.

I wonder if that is dealer specific. I'll check on a couple local Subaru dealers here to see what they say. Maybe it's just your specific dealership.

With an EcuTek license, cable, and software, you could flash an updated ROM onto your car yourself, or have the new ROM base included with a tune.

You are correct, the transient knock issue correction was included in the A01 ROMs.

i called the toyota dealer i bought the car from and they said there are no "recalls" on my production date which i find to be some bs. i bought my car october 2012. im thinking of driving over to the dealer today and asking them in person or is that a waste of my time? i track the car and auto x it so im concerned. could i go to a Subaru dealer to have the same thing done or would they deny me because its not a "Subaru" ?

There is a big difference between Recall and TSB.

I understand that. But if it could cause di seals to blow then youd think they wpuld let their customers.

Sent from my SAMSUNG-SGH-I337 using Tapatalk

My point is that you need to site a reason for the replacement to get a TSB. A recall is mandatory. In all reality, that ignition retard fix is to cut down on the heat that attacks the DI seals when shifting from/to specific RPMs. They sent the car out from the factory with an incomplete table which is just stupid.

Agreed good sir :) I was just doing the " with the fingers lol. But yah there is a tsb for it right?

Sent from my SAMSUNG-SGH-I337 using Tapatalk

Check the TSBs here:
http://www.ft86club.com/forums/showthread.php?t=21868

There is a TSB for both the FRS and BRZ for the idle stability/idle drop issue.
FRS: TSB: S-SB-0040-13
BRZ: TSB: 11-136-14

Both TSBs will get you flashed with the latest B01 ROM.

- Bob

The one posted above is the one you want. There isn't one for the DI seals, but they did fix the tune with newer revisions and the idle drop is how people have gotten the new calibration flashed.

I work at a Subie dealer and if any(not a certain prod date range) 2013 BRZs come in and they mention/need the reflash we install ZA1JB01C/D (depending on MT/AT).

Wish I could go to a subie place. But im going to bring it up to them

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Maybe a noob question but will flashing with OFT or ECUtek fix these issues? Is there any way of telling whether you are on the latest stock ROM via OBD2 or OFT?

Tuners generally base modded ROM's on latest ones available. The DI fix will be included.

I was just at the dealer for this very purpose.

They stated repeatedly that they could not upgrade me beyond ZA1JA00C. Because (for MY car) there was not a newer ROM version available in the computer.

I explained that the new ROM was compatible, that Toyota updates their cars, and the newer ROMs solved other problems.
They explained that they could not upgrade me to anything beyond A00C because they were not capable of selecting a newer ROM in the computer.:mad0260:

Whoever you talked to sounds like they didnt have a clue what they were doing

other possiblity is that, for some reason, they didn't receive the latest push update from subaru that contained the reflash files.

wearever you took your car and they told you that, I wouldn't go anyware near there again.

Conflicting info. Would like to get some thoughts on this before I bitch to SOA.

Took my very '13 BRZ (very early, delivered ~2 years ago) to get the rpm drop TSB flashed. Came home, hooked up ecuflash and the calibration is ZA1JA00C. No idea if they did anything per TSB, since the rpms were kinda unstable as usual when idling at a couple of traffic lights.

Anybody knows what exactly this TSB does to other tables? Unfortunately I didn't think to pull what was there before doing the TSB.

Anyway, naturally, that ZA1JA00C calibration does nothing to address transient ignition retard tables, which was the only reason I decided to waste an hour to get this TSB. So, is there a way to know if my dealer did anything at all per TSB (the TSB text says that everything should be updated to ZA1JB01C which didn't happen) or they just claimed they did something when in fact they didn't?

Were people with early '13 BRZ able to get newer calibrations?

If the cal-id still reads as A00C then they did not flash the ecu to the latest firmware which is B01C

AFAIK the A01C addressed the transient ignition retard issue that was in earlier firmware 700C. The B01C just appears to be idle dip issues and air-cond idle dip issues.

But everyone likes to be on latest firmware :)

Heard a few others had similar issues with dealer refusing to update them to latest firmware pretty sure @regal had same issue and he just flashed latest with ecuflash.

By the way tactrix release BRZ ecuflash official version in website still get the defs and bitbases from github as the ones in the release not the latest.

No it didn't. I wouldn't be posting if it did.

Yep correct it was A01C sorry, I am in another country though just trying to help :D

If you have ecuflash why not just flash B01C, and if your worried flash it back to A00C for dealer visits ?

I would if there's a ZA1JB01C raw file somewhere, or a techstream-compatible file. Couldn't find it so far.

I'll add that I've seen stock cars pull significant timing as well, and cars with aftermarket intakes tend to do so more as bob has already said. A car I did recently was pulling 4+ degrees under load, where most of the time I don't see more that 2 degrees or so on good 93.