Direct Injector Failure Poll

[vgi]

Originally Posted by thill

Well you are right the newer calibration file that is installed on car built after Jan 2013 may or may not resolve the DI issue. That said, we really don't know because the poll is anonymous and does not capture what year a car was built that had the failure. Do you have proof that the latest calibration file does not fix the issue? Have you seen someone with a recent build date that had DI issues?

Sorry, but without information we end up with speculation. Fact of the matter is that with as many FT86's has been sold globally, and as many registered members we have on this site, there are few reported failures and the ones that have reported the issue were on cars built in 2012. That's the best I got.

Exactly the point I was trying to make, let's see until 2013s put like 20+k miles and some track time

[Yodude3]

Interesting reading this forum.

Obviously over in the UK we are concerned about this DI problem. However as far as I know there hasn't been a single case of blown injectors over here. Obviously the sales of GT86s + BRZs are much lower in the UK (about 2750 to date).

Spoke to day to my dealer to get the mapping checked on my car and as expected from the manufacture date of Oct 2012, it has the old mapping, but he felt there was no issue for UK based cars. He doesn't thinking the new mapping will become available except on new cars.

Could it really be down to the fuel? The minimum octane fuel available in the UK is 95. The handbook recommends using 98 octane fuel. This is widely available, but slightly more expensive. The dealer also pointed out that in the UK we use far more fuel additives than elsewhere.

[DarkSunrise]

Originally Posted by Yodude3

Could it really be down to the fuel? The minimum octane fuel available in the UK is 95. The handbook recommends using 98 octane fuel. This is widely available, but slightly more expensive. The dealer also pointed out that in the UK we use far more fuel additives than elsewhere.

Are most UK owners putting in 99 RON for track days? That would convert to about 94-95 octane here.

[Asinar]

Originally Posted by Yodude3

Could it really be down to the fuel? The minimum octane fuel available in the UK is 95. The handbook recommends using 98 octane fuel. This is widely available, but slightly more expensive. The dealer also pointed out that in the UK we use far more fuel additives than elsewhere.

Note: One needs to be careful comparing octane ratings. North America uses a different octane rating system than pretty much every other country in the world. Our 94 AKI is roughly equivalent to your 98 RON. Your 95 RON would be close to our 91 AKI, which is what the folks on the west coast seem to be stuck with.

Given the Toyota SA diagnosis of the problem, fuel octane would make perfect sense in context: octane is, by definition, the resistance to detonation, and detonation is what they claim damages the seals. Operating at the minimum requirement (e.g. 91 AKI for the US models) would leave you more vulnerable to variations in fuel quality (additives, impurities, real octane) and operating conditions (temperature, air pressure, power) than someone operating above the requirements (e.g. the 93/94 AKI available on the east coast).

Hearsay and speculation: I've been told by an ex-gas station employee that the owner of his gas station would move fuel from the regular (87 AKI) tank to the premium (93/94 AKI) tank prior to deliveries. This was done to meet the minimum order requirements (regular is the vast majority of a gas station's sales). The obvious side effect is lowering the actual octane level of premium fuel pumped from that station. Assuming this is true, this was decades ago and I have no knowledge as to how widespread it was (or potentially still is). For people living on the west coast, where "premium" is 91 AKI, it could be a serious problem if actually true. Repeat: hearsay and speculation (I imagine state authorities are actively testing for this)

[vgi]

I think in Europe they don't have up to 10% alcohol though in their gas.

Also, I think they don't drive as much mileage wise.

[ft_sjo]

Originally Posted by vgi

I think in Europe they don't have up to 10% alcohol though in their gas.

Also, I think they don't drive as much mileage wise.

The UK has 5% ethanol in all 95RON fuels, and some super unleaded's.

[AyJay]

Originally Posted by regal

Worst case for 2012 build date owners now is a flash from the $500 Open Tablet, not enough to keep bitching about.

Not into spending $500 bucks and risking my warranty because an OEM manufactuerer is preying on a minority populations lack of a voice. Pre-Feb 2013 early adopters paid a lot of money in good faith and helped to contribute to the buzz and strong sales that this car currently enjoys... and this is how you reward us?!?

Toyota, fix this sh1t!!

[7thgear]

how in the world did i miss this thread

plenty of high rev play on my part, but i haven't noticed any of the symptoms yet

so this is only during rappid on/off throttle application?

[Yodude3]

Hi

Today I received correspondence from Toyota indicating that the ZA1JA01G engine mapping has NOT been fitted to any European GT86s.

They also informed me that the specification of the GT-86 in the UK has been designed for the European market which differs from that in other markets such as South Africa or the USA.

They also stated through their diagnostic monitoring processes, that there have been no issues with the Fuel Injectors on the GT-86 in the United Kingdom.

[strat61caster]

Originally Posted by Yodude3

Hi

Today I received correspondence from Toyota indicating that the ZA1JA01G engine mapping has NOT been fitted to any European GT86s.

They also informed me that the specification of the GT-86 in the UK has been designed for the European market which differs from that in other markets such as South Africa or the USA.

They also stated through their diagnostic monitoring processes, that there have been no issues with the Fuel Injectors on the GT-86 in the United Kingdom.

Interesting, aren't all Euro models the same (i.e. same in U.K. to Germany to France to Italy)? So that means that the failures linked below are unrelated to the tune?

http://www.ft86club.com/forums/showthread.php?t=40951

[Yodude3]

I assume that all GT86s in Europe are similar spec engines. Obviously there are different models because of the left and right hand drive.

Also I doubt if the Toyota GT86s used at the Nurburgring have standard engine mapping. Of course these cars wouldn't be covered by any warrantee as they have been used for purposes not covered.

In addition the information I received relating to DI issues refers to UK problems, not Germany.

I wonder why Toyota have not chosen to put the later engine mapping onto our cars. Maybe they feel it is easy to deal with any warrantee issues rather than get all cars updated to the latest maps.

[strat61caster]

Originally Posted by Yodude3

In addition the information I received relating to DI issues refers to UK problems, not Germany.

That's my question, if it pertains to the tunes on the UK cars it should pertain to the tunes on the cars sold in Germany, yet we have evidence that those cars have failed DI seals as well.

Their website claims stock power outputs and makes no mention of aftermarket upgrades other than suspension, seats, roll cage.

http://www.rentracecar.de/?p=137

[AyJay]

The board has been quiet about this issue for a lil while now. Nothing new to report? Any closer to a solution?

[darthwong1138]

Originally Posted by AyJay

The board has been quiet about this issue for a lil while now. Nothing new to report? Any closer to a solution?

I was thinking the same thing. I am wondering if taking the car in for the idle fluctuation TSB will get us the latest software that supposedly fixes the issue.