100% DI Failure with Nurburgring rentals

[chadstyle]

Originally Posted by Dezoris

I just ordered:
The seals, insulators and fuel pipes for all 4 injectors the intake manifold gaskets and throttle body gaskets required. $400.

When my engine gets hot usually after driving an hour, if I apply full throttle at about 4000RPM I get a loud pop from under the hood. It has happened twice. So I want to pull them to check

If you order a new injector it comes with all the seals installed already.
Each injector is $300.

Its not as easy as ordering the injectors. As they have a flow number on them.

All 4 injectors will have the same number, but there are 3 different part numbers which means you could have number 1, 2 or 3 stamped on the injector.

So basically because of the parts delay, you will have to pull the injectors twice if you have a scorched injector. First to inspect and get the number and order the right part and then a second time to replace an injector if it is bad.

Regardless anytime you pull them to inspect you need intake man gasket, throttle body gasket and fuel pipes per service manual to be replaced.

Thank you for the detailed reply!! I have a friend on the forum (I will omit his name out of respect) that had the Vortech kit installed and started having similar issues evolving into misfire above 6k or so. Prior to the Vortech kit his car was running really strong with just over 200 HP on E85 with tune, intake, and header back setup. He has had countless dealership visits and they have determined it to be a DI seal. No blown motor, yet, but the issue isn't fully resolved either.

I feel for the guys having these issues and its the only thing that has me on the fence over FI. I'd love to have the FA20 kit installed already and beating the crap outta the car having at least some faith in the reliability but these issues popping up on NA motors too has me worried to install even a "safe" supercharger kit like the innovate or Vortech. I've been watching as patiently as possible as the early adopters (you) of the early adopters (ft86 community) log some miles on each of these setups and find the weak links. As hard as it is to wait my wallet thanks you for taking the leap first.

[lsxiong]

I think I will wait on buying this car as new. I would rather pick one up with a blown motor in a couple of years and throwing in an LS swap. I'm predicting there will be many cars with blown motors to chose from.

[Dezoris]

Originally Posted by civdaddy

^ I say u and turbowski make a video of the di inspection!

I planned on it if I ever get the parts in!

Originally Posted by chadstyle

Thank you for the detailed reply!! I have a friend on the forum (I will omit his name out of respect) that had the Vortech kit installed and started having similar issues evolving into misfire above 6k or so. Prior to the Vortech kit his car was running really strong with just over 200 HP on E85 with tune, intake, and header back setup. He has had countless dealership visits and they have determined it to be a DI seal. No blown motor, yet, but the issue isn't fully resolved either.

I feel for the guys having these issues and its the only thing that has me on the fence over FI. I'd love to have the FA20 kit installed already and beating the crap outta the car having at least some faith in the reliability but these issues popping up on NA motors too has me worried to install even a "safe" supercharger kit like the innovate or Vortech. I've been watching as patiently as possible as the early adopters (you) of the early adopters (ft86 community) log some miles on each of these setups and find the weak links. As hard as it is to wait my wallet thanks you for taking the leap first.

Well in my case I had 10k on the clock before I did the Vortech and the popping noise happened after about 500 miles with the Vortech.

So chances are IF I do have a problem it was caused before supercharger, and now the extra heat and pressure are going to accelerate the issue.

Thanks for the heads up. As soon as I pull the injectors I will have a video and thread with the results.

[chadstyle]

Originally Posted by Dezoris

I planned on it if I ever get the parts in!



Well in my case I had 10k on the clock before I did the Vortech and the popping noise happened after about 500 miles with the Vortech.

So chances are IF I do have a problem it was caused before supercharger, and now the extra heat and pressure are going to accelerate the issue.

Thanks for the heads up. As soon as I pull the injectors I will have a video and thread with the results.

I'll be watching for the video..hopefully you solve your issue before it escalates into anything worse.

Again, thanks for the prompt replies!

Chad

[cmspooner]

Wow...a 100% failure rate with a sample size of 2! I have 100% rate of no crickets...oh my sample size is 1..that's legit right?

Two cars that were bought at the same time are not a great way to diagnose problems with the engine as a whole.

[carbonBLUE]

Originally Posted by cmspooner

Wow...a 100% failure rate with a sample size of 2! I have 100% rate of no crickets...oh my sample size is 1..that's legit right?

Two cars that were bought at the same time are not a great way to diagnose problems with the engine as a whole.

true but it could be good for research, since they are rentals and they are driven hard all the time every time, if they failed at around the same mileage it would point to a defect, that in itself is a problem. And if they bought 1 more and it too failed at the same mileage then it would be a viable claim.

but who knows, its scary for people like me and a few others because i don't track at all but i do drive my car pretty spiritedly in small spurts here and there and im coming up on 35k miles so ill let yall know if i have a failure, im pulling mine at 50k if i don't throw a code by then

[FRiSson]

If this becomes a pervasive issue at higher mileage, it is likely that Toyota will take car of it under a "silent warranty" program. For example, Toyota replaced chassis of Land Cruiser no longer under warranty due to excessive rusting.

[yuicebox]

This thread definitely needs more details but it certainly raises some valid questions.

1. When were the rental cars manufactured? Is this something that Toyobaru has "stealth fixed" with the ECU update to retard engine combustion over 5200 RPM?

2. Is the failure the result of the fact that these two rentals were used almost exclusively on the track?

3. What does this mean for the future of this car, on track and off?

[Lonewolf]

Originally Posted by cmspooner

Wow...a 100% failure rate with a sample size of 2! I have 100% rate of no crickets...oh my sample size is 1..that's legit right?

Two cars that were bought at the same time are not a great way to diagnose problems with the engine as a whole.

Sample size of 4...only two cars were available at the rental place at the time, but all 4 there have had similar DI issues...

Not to mention the owners here who have either had the issue crop up already, or have cars starting to exhibit the symptoms...

[suaveflooder]

Originally Posted by Lonewolf

Sample size of 4...only two cars were available at the rental place at the time, but all 4 there have had similar DI issues...

Not to mention the owners here who have either had the issue crop up already, or have cars starting to exhibit the symptoms...

I hate to say this, but even adding a sample size of 4 to the cars on here, failure rate is pretty low.

[Lonewolf]

Originally Posted by suaveflooder

I hate to say this, but even adding a sample size of 4 to the cars on here, failure rate is pretty low.

***Imagine if you had the cash to pony up and buy 4 FRS/BRZ for a driving academy, and then ALL of them went and developed the same serious issue...you wouldn't be concerned or bothered?

So far the failure rate of forum-involved individuals appears to be quite low; but as to the true failure rate, only Toyota/Subaru know. As most are speculating, this problem seems to appear after hard use (perhaps prolonged use as well) and it is unsettling that there is some potential for this problem to become significantly more widespread as the years go by.

For now, this problem could just be an unfounded fear that will not affect the masses, or it can become the automotive equivalent of the boogeyman, crapping on all our hopes and dreams...

[gixxer]

Wow, I feel like I'm on the NASIOC. Defend the newer crappy 2.5L WRX in 2008 with all the engine failures. Coming from an x owner we should spread the news so Toyota can look into it and get it fixed. I don't understand why people get their feelings hurt when their cars are not perfect which the truth is non of the cars are perfect. If there is an issue based on whatever is causing the problem we should be a part of the solution not to cover up and pretend it's a fluke.

I'm about to pull the trigger on a new one but until Toyota/Subaru finds a solution I'm not buying one "yet". I don't feel like being lucky and get a good one. I don't have the time anymore. I remember Audi had problems with the DFI/carbon buildup and I'm not sure if it's even fixed today but definitely improved.

[Jinzen]

I fully expect my engine to have problems. It's a new engine, has crickets etc.

3 years and it's going to be traded in for sure.

[cmspooner]

4 is better than 2...but how closely where they manufactured and how early are their vin numbers?...I have an early vin...but my issues have been cosmetic so far (condensation, passenger window, and rear deck ticking; and the ticking has gone away(.