[kowalcp2]

It’s due to the use of new multi phase injectors for power increase. “Because the special injectors can get condensation inside them if the engine is started for short periods, it will go into a self flushing mode where it purges the fuel in the injectors with a fast idle. It is completely cancelled when a gear is selected so it doesn*t pull at the car but it does get questioned when owners see the message “Fast idle due to dirsel injector cleaning”.”

 

[Southeastern]

It’s due to the use of new multi phase injectors for power increase. “Because the special injectors can get condensation inside them if the engine is started for short periods, it will go into a self flushing mode where it purges the fuel in the injectors with a fast idle. It is completely cancelled when a gear is selected so it doesn*t pull at the car but it does get questioned when owners see the message “Fast idle due to dirsel injector cleaning”.”

Thanks Mazda for that 'great' engineering! Its certainly going to get questioned when your running at 1500rpm on your driveway.

It barely does 1500rpm on the motorway at 70mph...shows you have much load it is using and the noise level.

 

[Lee]

Whta was your daily distances? How many km per trip? It wasn't warranty repairs?

You can work that out from my post. 60000 miles in 4 years, all long distance trips. I never used the car as a daily driver, but for nothing more than business trips.
Shortest trip was always 250 miles. It was always fixed under warranty.

Thanks for this Lee.

You´re welcome. You should notice that the auto start stop function should be deactivated.
If you turn the car off during it´s cleaning cycle you can and will damage the injectors pretty quick. It´s pumping fuel at a really high pressure and lots of it, eventually they will start to leak.

 

[Southeastern]

You can work that out from my post. 60000 miles in 4 years, all long distance trips. I never used the car as a daily driver, but for nothing more than business trips.
Shortest trip was always 250 miles. It was always fixed under warranty.



You´re welcome. You should notice that the auto start stop function should be deactivated.
If you turn the car off during it´s cleaning cycle you can and will damage the injectors pretty quick. It´s pumping fuel at a really high pressure and lots of it, eventually they will start to leak.

It is during the cycle, however it's the stop/start thats half causing the issue by turning off and not allowing the engine to heat up.

I've ordered a dongle so the istop holds its memory so I wont need to keep turning if off, that may help.

If the injectors go, Mazda will be paying for the new ones. I won't be leaving the car on when it's doing that. Ill be served with a noise abatement notice very quickly if I do!

 

[kowalcp2]

Had you got more cleaning procedures last days?

 

[Southeastern]

Have you got more cleaning procedures last days?

No, not since the last one...I just turned the engine off as normal and it cleared itself the next drive.

 

[ASH8]

Clearly you have not owned a modern diesel engine before as all have DPF Regen., its not a curse.
I never recommend any car buyer of any brand buy diesel if you travel less than 30 mins a day. Diesels are long haul not for short drive soccer mum usage.
Most car reviewers love diesels but they dont own them.
Fastest way to kill any common rail diesel engine is short driving, even with annoying curse.

 

[Southeastern]

Clearly you have not owned a modern diesel engine before as all have DPF Regen., its not a curse.
I never recommend any car buyer of any brand buy diesel if you travel less than 30 mins a day. Diesels are long haul not for short drive soccer mum usage.
Most car reviewers love diesels but they dont own them.
Fastest way to kill any common rail diesel engine is short driving, even with annoying curse.

Fast Idle Cleaning has nothing to do with DPF Regeneration.If you had bothered reading the thread, FIC is a Mazda specific trait regarding the cleaning of their ‘special injectors’ . I’ll upload a Mazda doc shortly explaining, its a little more involved that what it states but its due to the design of the injectors and chambers that Mazda felt that high velocity cleaning is required .

Diesels definitely can be used for short trips as well as long hauls, provided they are looked after correctly, in ten years of Central London diesel ownerships I’ve never had a single problem and they perform great for the job they do.

My maintenance solution is to always ensure at least once a week to ten ten days that a good thirty minute plus motorway drive is performed to clear the DPF. Without doing this, and running five minute daily errand runs, yes you could run into issues.

 

[PCM]

Never had a single issue around cleaning on my Tiguan diesel in 78k miles.

Perhaps the Tiguan isn't as fancy as the CX60 in the way it manages the engine 😀

 

[ASH8]

No what I said about fast idle has everything to do with DPF.

You uploaded a 2019 document from MNAO related to the old CX-5 Diesel sold very briefly in USA also used with mandatory Adblue for emissions and injector clean.
This KF CX-5 was the first ever diesel Mazda car sold in USA.

It is not the same as CX-60 or CX-90 diesels as they are Not the same engine design or same parts of Bosch brand.
None of the engine parts are common with what is now considered old new diesel in that KF CX-5 which had Adblue set up to pass US emissions, car engine and car was discontinued in less than 6 months.

Currently there are no new gen diesel engines in CX-90 on offer and I doubt there will be for North America.

This what happens when people post random information which is not related to your car.

And yes, short distance driving of any diesel engine will result in short engine life as one of the first signs are IC warning lamps and or 'oil level rising' (look at dip stick) in sump due to raw unburnt diesel fuel wash past piston rings what mixes with engine oil in sump and or lack of DPF Regen or both.

Personally I would never own any diesel car or truck of any brand unless you do long haul driving...they are fantastic then, otherwise way too much grief.

 

[Southeastern]

No what I said about fast idle has everything to do with DPF.

You uploaded a 2019 document from MNAO related to the old CX-5 Diesel sold very briefly in USA also used with mandatory Adblue for emissions and injector clean.
This KF CX-5 was the first ever diesel Mazda car sold in USA.

It is not the same as CX-60 or CX-90 diesels as they are Not the same engine design or same parts of Bosch brand.
None of the engine parts are common with what is now considered old new diesel in that KF CX-5 which had Adblue set up to pass US emissions, car engine and car was discontinued in less than 6 months.

Currently there are no new gen diesel engines in CX-90 on offer and I doubt there will be for North America.

This what happens when people post random information which is not related to your car.

And yes, short distance driving of any diesel engine will result in short engine life as one of the first signs are IC warning lamps and or 'oil level rising' (look at dip stick) in sump due to raw unburnt diesel fuel wash past piston rings what mixes with engine oil in sump and or lack of DPF Regen or both.

Personally I would never own any diesel car or truck of any brand unless you do long haul driving...they are fantastic then, otherwise way too much grief.

This thread is about Fast Idle Cleaning, which is a process explained above, nothing directly related to the DPF, the CX60 has its own DPF regeneration functions which are different to the FIC cleaning process. If you were an owner of one you would know this as the DPF regen is fairly audible when its happening and its at different intervals than the FIC. Sure, everything on an engine is connected in some way, but fundamentally these are different functions for different first tier solution purposes.

The FIC is relevant to all Mazda Diesels that have the Fast Idle Cleaning process (in the UK and Europe at least), which is all of them I am told by Mazda. I have had big discussions about this process with the increasing emissions controls in the UK and 'idling' engines being forbidden in some boroughs in London. The only reason i used this document as it was one that explained the process the best.

The FIC process is the same for the CX60 3.3 as as the Mazda 2.2 Diesel, the 3.3 has Ad-Blue, (I imagine the 2.2 does also depending on age) it doesn't really matter about the age of the document at all or what vehicle it refers, the process and its function is still the same as it still exists.

Diesels are great, and the Inline6 is an absolute peach, works fine for short journeys as long as you are aware it needs a blast every week or so. Thankfully my FIC barely comes on anymore, it seemed to only happen when it was new but it may be because of the document, I now know to not turn it off multiple times in fairly quick succession before it has gotten to operating temperature, but even still I do do this sometimes and its been fine.

As I said, 10 years and counting and the diesel car that did most of those daily short trips now lives a few doors down and is carrying on fine..doing short trips. We can create shock headlines for most things, such as driving a petrol engine hard from cold will score the bores and potentially lead to a ring being pulled, (wonder how the PHEV manages this when the EV mode switches to a freezing cold ICE at 60mph?) no engine is infallible and will be affected by whatever use it is given, but authoritarianism is so, 1940..

 

[rayh]

With my Diesel cx60 apart from the noise and fast idle I also get a real smell of burning rubber, just wondering if anyone else experiences this also.

 

[Eden_of_Europe]

@Southeastern are you able to switch to D and drive off while the fast idle is happening?
Edit: just noticed that you're able to drive

This is making me question my decision to buy the CX60 diesel. I don't like the PHEV either.

 

[Southeastern]

@Southeastern are you able to switch to D and drive off while the fast idle is happening?
Edit: just noticed that you're able to drive

This is making me question my decision to buy the CX60 diesel. I don't like the PHEV either.

Yes you are, the negative side to it is that when you become stationary again, such as at the traffic lights, the cleaning mode continues so all the people around you look at you like you're an idiot revving your engine at the lights - which being s diesel is quite noisy.

Tbf, now my engine has gotten older, the FIC mode dosent activate as much, it seems to happen if you stop and start it around 4 times within 20-30 minutes, or multiple short trips in one day.

 

[kowalcp2]

Yes you are, the negative side to it is that when you become stationary again, such as at the traffic lights, the cleaning mode continues so all the people around you look at you like you're an idiot revving your engine at the lights - which being s diesel is quite noisy.

Tbf, now my engine has gotten older, the FIC mode dosent activate as much, it seems to happen if you stop and start it around 4 times within 20-30 minutes, or multiple short trips in one day.

It contiunes at D when you are at traffic lights?

 

[Southeastern]

It contiunes at D when you are at traffic lights?

It does until its finished its cycle. You can of course go for a motorway drive and it wont come back on as it seems to mitigate its cycle within a higher rpm journey, but if you live in a city, you come to traffic lights, 2000rpm and everyone looking at you like you're a muppet.

 

[kowalcp2]

It does until its finished its cycle. You can of course go for a motorway drive and it wont come back on as it seems to mitigate its cycle within a higher rpm journey, but if you live in a city, you come to traffic lights, 2000rpm and everyone looking at you like you're a muppet.

I thought it comes back only when you come back to P/N.

 

[Southeastern]

I thought it comes back only when you come back to P/N.

Not on mine, whenever it is idling, no matter the gear.

 

[RBandiziol]

The CX60 curse just keeps on giving.

After a couple of weeks, this happened. The engine goes to 1500rpm at tickover and then holds it for however long it decides it needs to do its thing.

View attachment 307

As this happened after a couple of weeks of short trips as due to illness I hadnt done my usual DPF preventative measure of a 30-45minute rag up the motorway, I figured it was just a safety measure, and after around 5 minutes it went off. Its not a good thing, the engine is pining away at 1500rpm, and it isn't quiet. My neighbours were getting pissed, but if its once in a blue moon I could cope.

According to Mazda, you should not turn off the engine during this process, so if it happens at 2am, well, yes, you'll look like a proper bellend revving your cars engine.

I read this document, sure its for the 2.2D engine, but I imagine it is the same principles.

https://static.nhtsa.gov/odi/tsbs/2019/MC-10163331-0001.pdf?fbclid=IwAR3fgN86C7TSet-7XLN3-DiH4iJjGAeRZA_w4oClG-xtYFzdzfLhOr4EfCY

Page 9

View attachment 306

After a weekend of mainly motorway and long A-road driving, if happened again. This time taking 10 minutes to go off.

So, it made little sense, as I had not done any short trips and this was the first time I had fired up since then.

If this is going to become a thing, that I can't even go to the shops without having to leave the car revving away in either the carpark or my driveway, then this is a serious flaw.

I have used Super Diesel in this tank, so when its empty, Ill put the standard stuff in - but I felt the Super would have been the better option to keep the engine and injectors clear when doing shorter trips.

If anyone has any experience of this, would love to hear your thoughts!

hi
Prior to the 10k service our would do the burn off approx every 3 to 4 weeks but since the service it now does it every 2 to 4 short trips
Whilst getting other faults fixed I told them of this problem but they said it’s normal.
Mazda changes their mind when they NEED to

 

[Southeastern]

hi
Prior to the 10k service our would do the burn off approx every 3 to 4 weeks but since the service it now does it every 2 to 4 short trips
Whilst getting other faults fixed I told them of this problem but they said it’s normal.
Mazda changes their mind when they NEED to

It’s the dealers that make stuff up, my dealer said this was a DPF regeneration programme, they literally don’t care and have no clue 🤦‍♂️