Injector / seal failure or Miss-fire codes.. please post here

[F1point4]

Getting back to the states and seeing this
Went through a few threads and found some good nuggets.

Originally Posted by mad_sb

I want to thank @epifan for sharing the changes with me. This info comes from the JDM rom. Right now he is waiting on some more of the BRZedit pro users to send in updated roms from other regions.

From what he shared with me, the only thing that is changed by the seal failure update is the transient ignition retard table and activation rpm. At least that is all that has been found so far.

Transient Retard is retarding ignition timing during quick throttle lift (like fast shifting). Stock, TR is not enabled over 5,000 rpm and even if it were the table is zeroed out above 4000 RPM. The new software just moves the deactivation point up to 10,000 RPM and fills in table values above 5600 rpm.

I would also like to thank @DrSUTRA for posting up the pics and documentation about the update.

I Think this update needs to be pushed to ALL cars. The simple fact is, with the transient retard setup like it is from the factory, there is the potential for ALL cars to have this problem at one time or another. All it takes is a bad tank of gas. Now, how many det events does it take to burn out the seal... that is another question.

Software Update and bulletin with describes the issue. It appears Toyota acknowledges there is an issue.
http://www.ft86club.com/forums/showp...2&postcount=65


This makes a lot of sense to me

Originally Posted by robispec

all internal documentation points to combustion chamber DETONATION as the cause for the direct injector seal failures seen by trackday/"spirited driving" customers. there is a specific pattern of rev limiter in third(this car does more than just cut spark at the limit) quick shift to 4th and a quick on off throttle sequence that provides the knocking that moves the direct injector up and down in it's bore exposing the nylon seal to direct combustion conditions...destroying the seal. (happened to a friends car this weekend and he knew exaxtly where it happend!)
There are other conditions to be sure but the fix is to change ECU parameters to eliminate the potential conditions which cause this knocking.
ITS KNOCK CAUSED BY YOUR TUNER that CAUSED your injector seal to fail. PERIOD

Picture of damage injectors
http://www.ft86club.com/forums/showp...1&postcount=28



Few youtubes in the middle of that page of the sound that may be caused by the O-ring failing
http://www.ft86club.com/forums/showt...t=20930&page=2




I did ask @Jeff@Perrin and @Chris@Perrin about it. They just sent me a new tune for the Vortech system which they say should prevent the issue. I may listen for a few days before flashing to see if I have it. I haven't heard anything unusual so I don't think I have it fortunately.

[Carwhisperer]

Originally Posted by RAWR BRZ

Any one in North America have the injector seals replaced yet? How long did it take? I need mine replaced and service isnt open today because of memorial day... I need it done before Saturday for a track day...

Been in the shop since May 6th. Still waiting on the brand new DI's to be shipped straight from the manufacture in Japan. 2nd time ive been back to the dealer for a DI leak.

[whitefrs]

Originally Posted by Carwhisperer

Been in the shop since May 6th. Still waiting on the brand new DI's to be shipped straight from the manufacture in Japan. 2nd time ive been back to the dealer for a DI leak.

are you turbo?

[Carwhisperer]

Originally Posted by RAWR BRZ

My CEL never turned on so it may also be another issue but I am not sure. I am taking it in around 12. I am sorry to hear you have the same issue. If you drive it granny style it shouldn't pop. I think every time it pops it damages the engine/remainder of the seal more. I will keep you posted.

I never got a CEL the 2nd time my 2nd DI starting leaking. Only CEL I got was P0351 a day before the first one starting popping under moderate acceleration.

I'm NA, with a Perrin CAI

[Jeff86]

Originally Posted by Carwhisperer

I never got a CEL the 2nd time my 2nd DI starting leaking. Only CEL I got was P0351 a day before the first one starting popping under moderate acceleration.

I'm NA, with a Perrin CAI

Soshite e85 ne? I know we aren't blaming e85 yet, but if it's involved it should be listed.

[sw20kosh]

can anyone explain why there is detonation during this On-Off-On situation during upshifting from high rpm?

[RAWR BRZ]

Originally Posted by Carwhisperer

Been in the shop since May 6th. Still waiting on the brand new DI's to be shipped straight from the manufacture in Japan. 2nd time ive been back to the dealer for a DI leak.

That doesnt sound good to me then... O well.

If I knew about this issue I would of refrained myself from shifting where I shifted and rather taken that corner slower. Just like what Robi said, I knew exactly where it happened after I read about the shifting and on and off throttle.

[sw20kosh]

Originally Posted by RAWR BRZ

That doesnt sound good to me then... O well.

If I knew about this issue I would of refrained myself from shifting where I shifted and rather taken that corner slower. Just like what Robi said, I knew exactly where it happened after I read about the shifting and on and off throttle.

Sorry to hear about this!

Would you mind detailing the scenario so that others can maybe avoid doing it?

[ft_sjo]

Originally Posted by sw20kosh

can anyone explain why there is detonation during this On-Off-On situation during upshifting from high rpm?

Because it takes a short time delta for the ECU to measure load again once you quickly drop the clutch. During this delta, the spark angle is too advanced which causes the transient det. The transient spark table is designed to interpolate between the old and future spark angle during a gear change.

[ft_sjo]

I hope this block doesn't use nikasil...

[RAWR BRZ]

Originally Posted by sw20kosh

Sorry to hear about this!

Would you mind detailing the scenario so that others can maybe avoid doing it?

My scenario is Streets of Willow turn three going counter clockwise (aka the fish bowl) so entering it I am at 2nd gear and I hit redline there. If I dont shift I bounce around redline, if I shift to 3rd I get maybe around another few mph before I have to brake and shift down back to 2nd. If I stay in third, I dont have enough power since it is uphill after that. So here is an example of the on and off throttle while shifting down up down which is said to have caused the issue.

[sw20kosh]

I see thanks RAWR!

You are on stock tune? I am wondering how much damage I have done to my seals after the 5-6 track days I have done already this summer...

I haven't gotten any factory flashes yet and I bought the car last July.

[Opposed]

Originally Posted by sw20kosh

I see thanks RAWR!

You are on stock tune? I am wondering how much damage I have done to my seals after the 5-6 track days I have done already this summer...

I haven't gotten any factory flashes yet and I bought the car last July.

I've done zero track days and mine are toast...

[CSG Mike]

Originally Posted by 2forme

Well, I know with Subaru, their own BRZ brochure kinda screws them out of denying warranty for aggressive driving.

Here is the excerpt from the very first paragraph you see in the sales brochure....

"Life moves fast. Don’t slow it down with a car you can’t trust. At Subaru, we build each of our vehicles with the highest standards of manufacturing, and with designs that are inherently tough and resilient. It’s why our vehicles excel in the most rigorous of motorsports, like rally racing. And why 96% of all the vehicles we’ve built in the last 12 years are still on the road today. It’s also why Subaru owners are so likely to stay Subaru owners for years and years. What’s more, keeping cars on the road means they stay out of landfills longer. And if we can help make the world a cleaner and greener place while making cars that inspire and motivate their drivers, we’ve done our job."

Sorry Subaru, you can't sell someone a machine that you market as reliable high performance, and then deny warranty when the customer uses said performance.

They're currently trying to deny warranty coverage on our engine because the vehicle was "used for competition". Lets not forget that our engine, and entire drivetrain for that matter, is stock. No headers, cat deletes, midpipes, intakes, or even a "sound pipe delete".