DI Failure Issue

[Sigh-on-Rice]

Originally Posted by thill

So if I get this straight if you are above 5200rpm and do a fairly aggressive up-shift (say from 1st to 2nd) and step on the gas, you could cause the injectors to fail?

I believe it's "no". Post #5 on this thread explains it. At the bottom of page 1 of the pictured document.
I believe it means this only happens on 3-4, 4-5, and 5-6 shifts. Not 1-2 or 2-3 shifts.

[denkigrve]

Originally Posted by thill

So if I get this straight if you are above 5200rpm and do a fairly aggressive up-shift (say from 1st to 2nd) and step on the gas, you could cause the injectors to fail?

No. You're going to cause a detonation that could put excessive wear on the seals, and over time it causes a failure as the seals are taking a lot of heating up abuse.

Originally Posted by Sigh-on-Rice

I believe it's "no". Post #5 on this thread explains it. At the bottom of page 1 of the pictured document.
I believe it means this only happens on 3-4, 4-5, and 5-6 shifts. Not 1-2 or 2-3 shifts.

It should still happen on any shift in any gear since the load is based on RPMs and not gears.

[track junkie]

Originally Posted by CSG Mike

You can't.... yet. Unless you live overseas in an area where Toyota has released an updated ECU flash that specifically addresses this.

Would newly manufactured cars for the U.S., after Jan. 21 2013, already have the updated ECU's containing the new retard ignition timing code?


Is it possible?

[thill]

Originally Posted by denkigrve

No. You're going to cause a detonation that could put excessive wear on the seals, and over time it causes a failure as the seals are taking a lot of heating up abuse.



It should still happen on any shift in any gear since the load is based on RPMs and not gears.

Right, but the detonation should be quite noticeable (popping/backfire) correct? I shift quite often in the 5200+ rpm range from 1-2 and 2-3. I can only imagine lots of people are doing this as well besides me and I have never heard a detonation occur. It seems like this would be happening a lot and there would be tons of failures vs just a handful that have been reported here??

[ayau]

Originally Posted by track junkie

Would newly manufactured cars for the U.S., after Jan. 21 2013, already have the updated ECU's containing the new retard ignition timing code?


Is it possible?

I don't think anyone here would no the answer. I'd be on the conservative side and wait until an official service bulletin has been released.

Everyone should start spamming to the media how bad the tune on these engines are. The public will see it and that will force Toyota/Subaru to update these cars, or they risk losing future sales.

[suaveflooder]

Originally Posted by track junkie

Would newly manufactured cars for the U.S., after Jan. 21 2013, already have the updated ECU's containing the new retard ignition timing code?


Is it possible?

Doesn't sound like it in the US

[ayau]

Originally Posted by thill

Right, but the detonation should be quite noticeable (popping/backfire) correct? I shift quite often in the 5200+ rpm range from 1-2 and 2-3. I can only imagine lots of people are doing this as well besides me and I have never heard a detonation occur. It seems like this would be happening a lot and there would be tons of failures vs just a handful that have been reported here??

Short term, I think you need to be driving it VERY HARD to see early failures. @CSG Mike can better explain the abuse the CSG BRZ has taken prior to the failure. I suppose it doesn't help when the highest octane in California is 91.

Long term, no one knows. The majority of owners will probably full under this category.

[thill]

Originally Posted by ayau

Short term, I think you need to be driving it VERY HARD to see early failures. @CSG Mike can better explain the abuse the CSG BRZ has taken prior to the failure. I suppose it doesn't help when the highest octane in California is 91.

Long term, no one knows. The majority of owners will probably full under this category.

Got it. If that South African TSB is correct it describes this condition occurring when you are above 7k rpm in either 3rd, 4th, or 5th gear and then end up back above 5200rpm on the upshift. Not sure why this would not apply to 1st and 2nd (ECU must protect for this?)

Again, assuming all of this is even accurate.

[CSG Mike]

Originally Posted by thill

Right, but the detonation should be quite noticeable (popping/backfire) correct? I shift quite often in the 5200+ rpm range from 1-2 and 2-3. I can only imagine lots of people are doing this as well besides me and I have never heard a detonation occur. It seems like this would be happening a lot and there would be tons of failures vs just a handful that have been reported here??

It's not; it happens before you're WOT, as you're rolling onto the throttle. It's so small that even the ECU doesn't recogniZe it as detonation/misfire.

[CSG Mike]

Originally Posted by ayau

Short term, I think you need to be driving it VERY HARD to see early failures. @CSG Mike can better explain the abuse the CSG BRZ has taken prior to the failure. I suppose it doesn't help when the highest octane in California is 91.

Long term, no one knows. The majority of owners will probably full under this category.

Only engines actually don't have a whole lot of track miles... easily under 1000 COMBINED track and canyon miles for that 2nd engine, and I'd guesstimate it's probably less than 500...

I typically only need 1 lap to produce a lap time, and maybe 3 at most to feel out a car and put down a decent lap.

[track junkie]

A very tough life for Nurburgring rental cars.

http://www.autoblog.com/2012/12/12/i...ng-rental-car/

[thill]

Originally Posted by CSG Mike

It's not; it happens before you're WOT, as you're rolling onto the throttle. It's so small that even the ECU doesn't recogniZe it as detonation/misfire.

When you say it's not are you referring to try popping sound? I thought it sounded like this:
[ame="http://www.youtube.com/watch?v=VnFa2IvNs9g&feature=player_embedded"]Frs popping noise when given throttle free revving or cruising, rolling on throttle to pass. - YouTube[/ame]

[CSG Mike]

Originally Posted by thill

When you say it's not are you referring to try popping sound? I thought it sounded like this:

Sorry, can't see videos at work (I have a real day job... I just pretend to be a racecar driver on the weekends)

[ayau]

Originally Posted by CSG Mike

Sorry, can't see videos at work (I have a real day job... I just pretend to be a racecar driver on the weekends)

He's a forum junkie during the day.