2.0 injector issue are they just random

[taxidriver50005]

Just a thought as knowledge is always king but for people who have had issues where are you based, where do you fuel up. 

I'm Skelmersdale and personally know of 3 other cars in my area that have needed injectors, my local dealer has seen a few more corolla's and lots of rav 4's.

I don't believe it's down to E5 or E10 but it could be the depot where fuel is coming from or even we are all filling at the same garages 

[trashman1965]

I was using the same 2 local Shell garages for V-power from new. Basingstoke, Hants 

[TonyHSD]

The quality of fuels and generally how they have been stored into the petrol stations tanks its a factor and the ethanol content  that only worsen the things. Maybe the climate in uk does it’s job too. , moisture in the air a lot. 

[Corolla Mike.]

Is it the port or direct injectors that fail? Assume it runs on direct injection then the ports kick in on acceleration. 

[Red_Corolla]

Mine is a road-trip car; it sits outside the house until it's time for a trip and then I go long distance, refuelling all over the place, even overseas in Ireland. No issues for me yet but, then again, the car has only done 26k because it spends so many days just sitting outside the house.

[Red_Corolla]

12 minutes ago, Corolla Mike. said:

Is it the port or direct injectors that fail? Assume it runs on direct injection then the ports kick in on acceleration. 

It's the ports. The strategy is a bit more complicated than that. My understanding (which, as usual, could be very wrong) is something like this:

Under light load, both sets fire on every combustion cycle: The first fire is from the port with a very lean mix, then the direct comes in during compression, just to create a little bubble of richness around the spark plug and aid the ignition process. Under heavy load or higher rpm, it switches to direct-only. So, in normal driving, I would expect the majority of the fuel to be introduced via the port injectors, even though it's only the direct ones that operate full time.

[Corolla Mike.]

found this for the GT86 D4S system which I guess is the same principle. 

Are the failures age specific ie 21my cars or just random?

 

[taxidriver50005]

I'm just trying to get a handle on a variable that may be causing problems, assuming all cars are equal and driving style isn't affecting anything. 

Fuel be it E5 or E10 has both had its share of failures... So what's left... Maybe where we are filling, coincidentally a colleague has just phoned asking advice on his 2018 prius which has just splutered to a halt after filling at a local esso station, no lights just splitter then stop.... He has got it going but running a little roughly... Looks like fuel contamination from past experience. 

I too have used this garage so there may be something in contaminated fuel rather than faulty injectors, some cars may just deal with it better than others. 

[taxidriver50005]

Incidentally a quick search on Google reveals lots of modern cars are having issues, just reading up on Honda crv hybrid and there failing at quite a rate.. Even 2024 models. 

[Chuffmonkey]

I have done 36k in 27 months and I tend to fuel from multiple petrol stations and vary between E5 and E10. Supermarkets , Esso, Shell, BP.

I cant remember the last time I put E10 in my car but that is just because prices for E5 are currently sensible but I wouldn't worry about putting in it E10 either. 

One thing I have noticed, I cant tell the difference between E5 and E10 when its in my car. The engine seems to idle the same and my MPG stays the same. 

Not related to Toyota but I have a friend who owned an Audi RS3 and it borked its engine after 6k, initially Audi tried to blame the fuel (Shell Garage), just seems the first thing manufacturers try before having to pay out is blaming the fuel. Interestingly if I recall correctly due to the engine of that car, it was around the £26k figure for the engine replacement and Audi had to fly someone in from Germany to ensure it was correctly installed to the car. They also set his warranty back to 0 miles and 36 months.  

[Red_Corolla]

2 hours ago, taxidriver50005 said:

Incidentally a quick search on Google reveals lots of modern cars are having issues, just reading up on Honda crv hybrid and there failing at quite a rate.. Even 2024 models. 

Don't know much about Hondas, but it wouldn't surprise me if they were also Nippon-Denso customers, being from the land of the rising sun. Toyota own a big share in the company but, still, more than half of the stuff they make goes to various other manufacturers.

Any similar troubles with the cars using Bosch kit, e.g. VAG stuff?

[Clockwork]

17 hours ago, Chuffmonkey said:

I have done 36k in 27 months and I tend to fuel from multiple petrol stations and vary between E5 and E10. Supermarkets , Esso, Shell, BP.

Interestingly I do exactly the same, I make a point of varying where I fill up and I do a few months on E10 followed by a few months on E5.  Mine is five years old and is on 42k.  I wasn't particularly impressed the last time I filled up (OK not fully) at a BP station though, the E5 was 46p a litre more expensive!

[OTS84]

I’ve got an early 2022 2.0 29k miles and the last few months have started noticing the misfires. It’s intermittent but yesterday I did get some significant vibration coming through the cabin. I mainly fill up with E10 from BP or Shell, the odd tank of V power every now and again. I’ve got a new 2.0 on order so hoping that won’t have the same issue 

[TonyHSD]

12 hours ago, OTS84 said:

I’ve got an early 2022 2.0 29k miles and the last few months have started noticing the misfires. It’s intermittent but yesterday I did get some significant vibration coming through the cabin. I mainly fill up with E10 from BP or Shell, the odd tank of V power every now and again. I’ve got a new 2.0 on order so hoping that won’t have the same issue 

You can try E5 premium and see if there is any difference. 

[Filip.08]

1 hour ago, TonyHSD said:

You can try E5 premium and see if there is any difference. 

I've put in my corolla 2.0 E5 for first 2 thanks and now I filled up with E10 + injector cleaner ( redex)  and to be honest I can't notice any difference ,  the only thing that I noticed is that mpg dropped a little bit , I need to se how It goes on longer journeys.. 

[Steven83]

My 2020 is Currently on 37k.

Bought the car at around 29k and since then I’ve used E10 a few times but mostly E5 from my local BP or Tesco.

I’ve not yet noticed any issues unless I’m just oblivious to it.

I almost always fuel in the Manchester/Stockport area. 
 

personally I love the car, can’t fault it for looks, performance, tech and value.

The only thing I wish I had as a shift worker is the remote HVAC. Would be lovely to get in the car at 3am on a winter’s morning with the car warm, the seat toasty and the windscreen defrosted. 

[sportse]

6 minutes ago, Steven83 said:

The only thing I wish I had as a shift worker is the remote HVAC. Would be lovely to get in the car at 3am on a winter’s morning with the car warm, the seat toasty and the windscreen defrosted. 

I use mine every day in winter, previously having to spend 10+ minutes getting the ice off the car. It's a useful extra, and I was surprised it's even on the standard 23+ facelift bottom of the range icon.

[Talking Hoarse]

Just a random thought regarding injectors on the 2.0's.....  and of course hoping that more are unaffected than affected. 

Could a contributing cause be that the 2.0 is so "laid back" when driven normally - and so is rarely worked hard enough to get that Italian tune -up (so to speak)?  Although I make progress in mine, the engine rarely revs far beyond 3000rpm, and mostly is trickling at less than 2000rpm.    

[Red_Corolla]

1 hour ago, Talking Houbik said:

Just a random thought regarding injectors on the 2.0's.....  and of course hoping that more are unaffected than affected. 

Could a contributing cause be that the 2.0 is so "laid back" when driven normally - and so is rarely worked hard enough to get that Italian tune -up (so to speak)?  Although I make progress in mine, the engine rarely revs far beyond 3000rpm, and mostly is trickling at less than 2000rpm.    

The set that are susceptible to failure are the port injectors. They're shielded from the combustion process by the inlet valves. Also, they only stop when the engine is working hard and the direct set take over fully. So, I would hypothesise that gentle driving conditions actually do more to keep these port injectors clean, not that I think it really has any bearing on the situation. I'm more concerned about design and/or manufacture of this particular part.

[nielshm]

I've done 110K miles so far, and it never missed a beat. It's build nov. 2019, and maybe some hardware got updated in later years, with potential problems beginning to happen?

I'm not a gentle driver, I does'nt drive at very high speeds, but accelerates pretty hard.

Motorway cruising speed is 70-80 mph'ish in Denmark, and maybe 90 mph in Germany

[fishhead]

It seem to me that many of the affected cars are from 2022+

So thats when the parts shortage and staff shortages were in full swing...

[TonyHSD]

It is not the parts at fault but the quality of fuels, additives in or lack off and how petrol is stored in garages tanks. 
You have no idea what you fill up your cars with, a mixture of petrol, ethanol and water mixed with other nasty stuff. In Germany and some other eu countries the fuels are way better than in England for example. 
Other hybrids like 1.8 or 1.5 in Yaris also suffer this problem but it’s not so prominent and most owners never noticed. The reason is because these engines only work with port injectors and this helps clean off the debris and corrosion to quickly return to normal operation. 
My question is for those with 2.0 hybrids who had knocking noises, have you just ignored these and keep driving and see if anything changes for better with the time ? 
You go to dealers and they likely to mess up with your car more than they actually can help. 

[taxidriver50005]

4 hours ago, TonyHSD said:

It is not the parts at fault but the quality of fuels, additives in or lack off and how petrol is stored in garages tanks. 
You have no idea what you fill up your cars with, a mixture of petrol, ethanol and water mixed with other nasty stuff. In Germany and some other eu countries the fuels are way better than in England for example. 
Other hybrids like 1.8 or 1.5 in Yaris also suffer this problem but it’s not so prominent and most owners never noticed. The reason is because these engines only work with port injectors and this helps clean off the debris and corrosion to quickly return to normal operation. 
My question is for those with 2.0 hybrids who had knocking noises, have you just ignored these and keep driving and see if anything changes for better with the time ? 
You go to dealers and they likely to mess up with your car more than they actually can help. 

I've drove for nearly 10,000 miles in it starts of mild and steadily gets worse to the point I was using the flappy paddles to keep revs up above 2500. 

 Now I've had my fair share of injector issues and had them replaced a total of 3 times in under 65000 miles. 

Corrosion has been mentioned as the cause, the last set before replacement lasted a total of 8,000 miles before issues started. 

The last set fitted are now on 10,000 and feel perfect, completely different to how it's felt before after being changed. 

Has anything changed? 

Well this time I'm fueling at 2 garages only.... Asda 98% of the time (I've run my 400,000 prius solely on asda fuel before.. No issues) and occasionally costco when I'm passing, and secondly I'm adding wynns dry fuel additive once a month to fuel. 

I don't believe it's bad fuel from refineries whatever brand you buy, but I do think there is something happening in storage in the garages. 

Either way I believe I may have had a bad or rouge fill up at some point or maybe many bad fill ups as I've not been using asda I I always did in the past. 

I'm now back on asda for the last 10,000 and sticking with it with regular use of fuel additive. 

30,000 is the most I've done on injector set so far so let's see what happens probably another 4 months or so to break my record. 

[Filip.08]

37 minutes ago, taxidriver50005 said:

I've drove for nearly 10,000 miles in it starts of mild and steadily gets worse to the point I was using the flappy paddles to keep revs up above 2500. 

 Now I've had my fair share of injector issues and had them replaced a total of 3 times in under 65000 miles. 

Corrosion has been mentioned as the cause, the last set before replacement lasted a total of 8,000 miles before issues started. 

The last set fitted are now on 10,000 and feel perfect, completely different to how it's felt before after being changed. 

Has anything changed? 

Well this time I'm fueling at 2 garages only.... Asda 98% of the time (I've run my 400,000 prius solely on asda fuel before.. No issues) and occasionally costco when I'm passing, and secondly I'm adding wynns dry fuel additive once a month to fuel. 

I don't believe it's bad fuel from refineries whatever brand you buy, but I do think there is something happening in storage in the garages. 

Either way I believe I may have had a bad or rouge fill up at some point or maybe many bad fill ups as I've not been using asda I I always did in the past. 

I'm now back on asda for the last 10,000 and sticking with it with regular use of fuel additive. 

30,000 is the most I've done on injector set so far so let's see what happens probably another 4 months or so to break my record. 

Ohh man I feel sorry for you , at least it has been paid by Toyota , I bought a month ago 2.0 l  , 2021 with 50000   miles on it without knowing much about the injector issue obviously I found out more afterwards , I don't even know how to notice it)) and hopefully I will never need to know it , sometimes I feel like really soft vibration trough the wheel when accelerating hard but I feel the same when I break so I don't know .. but I think about it constantly))

[yossarian247]

19 minutes ago, Filip.08 said:

Ohh man I feel sorry for you , at least it has been paid by Toyota , I bought a month ago 2.0 l  , 2021 with 50000   miles on it without knowing much about the injector issue obviously I found out more afterwards , I don't even know how to notice it)) and hopefully I will never need to know it , sometimes I feel like really soft vibration trough the wheel when accelerating hard but I feel the same when I break so I don't know .. but I think about it constantly))

I've just stopped worrying about it now. I think my car occasionally suffers from a mild case of it, when first started from cold it sometimes has a very slight misfire but to be honest if I hadn't read about injector problems on this forum I wouldn't have even noticed. Mine is 4 years old now and has 50k on the clock, and its serviced at Toyota so potentially has a further 6 years of warranty left so I'm not too bothered.