2.0 hybrid judder /missfire

[TonyHSD]

13 minutes ago, H Habibi said:

 

All that should had been free of charge as the car been still under warranty. 

[taxidriver50005]

23 minutes ago, H Habibi said:

 

Local dealer is very friendly, took in today he says straight off the bat it sounds like injector... If it is they will replace all of them unless it's out of warranty and then only the faulty part.. 

Also mentioned the new yaris is having issues too,  told me they had trouble finding information from Toyota themselves almost as if they were hiding the scale of the problem as they themselves have repaired about 6 cars with similar issue 

[taxidriver50005]

Well dealer has just got back to me and say zero fault codes but can deffo feel a misfire, ordering injectors as we speak and will book back in when they arrive. 

[TonyHSD]

A visit to Lexus forum will be an interesting step for those who own a 2.0 hybrids as the UX are basically a Corolla hatchback 2.0 with extra ground clearance. Wonder if any of those cars has similarly injectors issues and what they put a blame on, fuel type, quality, or parts. 
I used to get regular engine knocking on cold starts previously when I was using 95 petrol but since I use 99 only I almost have non of these, very rare they happen once in a blue moon. This is 1.8 hybrid, same as Prius . 

[taxidriver50005]

20 minutes ago, TonyHSD said:

A visit to Lexus forum will be an interesting step for those who own a 2.0 hybrids as the UX are basically a Corolla hatchback 2.0 with extra ground clearance. Wonder if any of those cars has similarly injectors issues and what they put a blame on, fuel type, quality, or parts. 
I used to get regular engine knocking on cold starts previously when I was using 95 petrol but since I use 99 only I almost have non of these, very rare they happen once in a blue moon. This is 1.8 hybrid, same as Prius . 

Being a 1.8 I doubt you will have problems, this motor has been used for over 10 years now with a little tweaking 

[taxidriver50005]

On 5/5/2023 at 11:56 AM, shufman said:

It was a slight misfire on cylinder 3 but they changed them all. Said they were incorrect spec. Whatever that means. No fault codes or lights though. 

Car scanner is reporting cylinder number 3 has misfire on mine but no engine codes

[shufman]

2 minutes ago, taxidriver50005 said:

Car scanner is reporting cylinder number 3 has misfire on mine but no engine codes

Same with mine. Strange!

[Cyker]

I haven't noticed any issues with my Yaris, and given how many different fuels I was using during lockdown, the price hikes, and during my current exploratory run, hopefully it's safe!

That said I don't even think I'd notice given how unrefined it is when running while stationary!  

[fishhead]

At what sort of mileage is this happen at?

[taxidriver50005]

2 hours ago, fishhead said:

At what sort of mileage is this happen at?

Well mine started at 25,000 ish... Ive read since if its going to happen it will be early on at lowish miles... Hope I'm not revisiting this problem. 

[taxidriver50005]

15 hours ago, Cyker said:

I haven't noticed any issues with my Yaris, and given how many different fuels I was using during lockdown, the price hikes, and during my current exploratory run, hopefully it's safe!

That said I don't even think I'd notice given how unrefined it is when running while stationary!  

I'm guessing a bit lumpy being a 3 pot... Still I'd have thought it would be smooth being a modern engine.. Perhaps a little poking around the Web is in order. 

[yossarian247]

8 hours ago, taxidriver50005 said:

Well mine started at 25,000 ish... Ive read since if its going to happen it will be early on at lowish miles... Hope I'm not revisiting this problem. 

Hopefully not. Mine is on 43k and has shown no sign of this so far.

[Gray86]

9 hours ago, taxidriver50005 said:

Well mine started at 25,000 ish... Ive read since if its going to happen it will be early on at lowish miles... Hope I'm not revisiting this problem. 

when in 2020 was yours built? I’m Nov 2020 (my21) with 23,000 miles. Already at 3 visits to dealer with suspension issues, hopefully no more on the horizon 😐

[taxidriver50005]

2 hours ago, yossarian247 said:

Hopefully not. Mine is on 43k and has shown no sign of this so far.

I don't think anyone knows why it's happening yet, fuel? How it's driven? Short or long journeys?  Bad batch of injectors? 

[yossarian247]

4 minutes ago, taxidriver50005 said:

I don't think anyone knows why it's happening yet, fuel? How it's driven? Short or long journeys?  Bad batch of injectors? 

I've only owned mine for a couple of months but it runs fine touch wood, and the online service history shows nothing but routine maintenance. It's an ex lease car so was probably driven hard and run on whatever fuel was cheapest or nearest!

[taxidriver50005]

12 hours ago, yossarian247 said:

 

Edited May 13, 2023 by taxidriver50005
Mistake

[taxidriver50005]

Just now, taxidriver50005 said:

 

Preliminary investigation reveals they don't have a in line fuel filter... This may explain injector problems. 

[TonyHSD]

4 hours ago, taxidriver50005 said:

Preliminary investigation reveals they don't have a in line fuel filter... This may explain injector problems. 

Non of hybrids has inline filters since 2010 gen 3 Prius. This should not be an issue. It is something else. Perhaps the ethanol content, chemical reaction as  a result of combustion. The thing is that dealer service are working  on the car and in many cases they aren’t honest with customers or does not want to tell the real reason for the problem. If you are with yourself, removing parts and inspecting them yourself you may have better insight what might have gone wrong. Strangely there aren’t videos with such a problems from USA on rav4 and Camry, no car care nut  channel reported anything and they use fuels with lower octane numbers and higher ethanol content. 
If me I will never touch any cheap supermarket e10 95 and only use e5 from bp, esso, Shell, or Tesco momentum 99 also a good one. You even gonna feel the difference in performance and efficiency plus how the engine is running smooth and quiet. 

[Cyker]

Even with regular supermarket fuel use there is no excuse for an injector failing because of the fuel, especially this early in its life - If it conforms to british standards, it should work fine.

The only excuse is if the fuel was contaminated, but they'd have to prove that.

 

On 5/12/2023 at 11:41 AM, taxidriver50005 said:

I'm guessing a bit lumpy being a 3 pot... Still I'd have thought it would be smooth being a modern engine.. Perhaps a little poking around the Web is in order. 

Yeah, annoyingly there isn't a balance shaft in the hybrid so even the Aygo's engine is smoother  Apparently there is a counterweight on MG1 which is supposed to balance it out, but it seems like that only does anything when the car is moving, then the engine is quite smooth, but if you stop and the engine keeps running (e.g. to charge or heat) then it has NVH like a diesel engine!  

I have found some fuels quieten it down a bit - Esso fuels, particularly their Supreme Synergy 99+ Stealth Fusion Power Unicorn Glitter Rainbow super-unleaded seems to be the least harsh so far, while at the other end of the spectrum supermarket fuel and for some reason Shell V-Power petrol seem particularly agricultural.

 

[taxidriver50005]

6 hours ago, TonyHSD said:

Non of hybrids has inline filters since 2010 gen 3 Prius. This should not be an issue. It is something else. Perhaps the ethanol content, chemical reaction as  a result of combustion. The thing is that dealer service are working  on the car and in many cases they aren’t honest with customers or does not want to tell the real reason for the problem. If you are with yourself, removing parts and inspecting them yourself you may have better insight what might have gone wrong. Strangely there aren’t videos with such a problems from USA on rav4 and Camry, no car care nut  channel reported anything and they use fuels with lower octane numbers and higher ethanol content. 
If me I will never touch any cheap supermarket e10 95 and only use e5 from bp, esso, shell, or Tesco momentum 99 also a good one. You even gonna feel the difference in performance and efficiency plus how the engine is running smooth and quiet. 

Well mine booked in for the 22nd and I'm going to be cheeky and ask if tech will take a couple of pics for me and the forum... We might get lucky

[taxidriver50005]

Here we go again, a friend has just had his car in for 70,000 mile service  and he mentioned he had the missfire... Dealer comfirmed.. Yup needs injectors. 

Only thing is this car has already had an injector replaced as well as new motor as said injector destroyed it... 

[Gray86]

19 minutes ago, taxidriver50005 said:

Here we go again, a friend has just had his car in for 70,000 mile service  and he mentioned he had the missfire... Dealer comfirmed.. Yup needs injectors. 

Only thing is this car has already had an injector replaced as well as new motor as said injector destroyed it... 

I was really hoping Toyota had avoided the issues associated with direct injectors, seems it’s still an issue. They operate in a very harsh environment within the combustion chamber so it’s understandable that they are prone to failure. Not as common as VW group cars at least.
 

was your friends a 2.0 as well?  

[Cyker]

Are they new injectors that fix the problem?

I wonder what the problem with the injectors is...

 

[TonyHSD]

Replacement engine on Toyota? Or I misunderstood? 

[taxidriver50005]

12 hours ago, Gray86 said:

I was really hoping Toyota had avoided the issues associated with direct injectors, seems it’s still an issue. They operate in a very harsh environment within the combustion chamber so it’s understandable that they are prone to failure. Not as common as VW group cars at least.
 

was your friends a 2.0 as well?  

Yes 2.0 as well