8NR-FTS 1.2turbo PCV and Ejector clean?

[solero]

Has anybody opened, cleaned, changed the PCv valve on their 8nrfts engine?

I couldn't see a service interval for it in the toyota maintenance schedule.

PCV is behind a metal bolted plate in the middle of the engine.

The ejector is somewhere above the head.

[AisinW]

There is no maintenance period for PCV valves and injectors. Don't fix it if it ain't broke, the Mantra of any Toyota.

Just add fuel additives with high amount of Polyetheramine PEA occasionally, or just use premium Shell fuel (contains 3x more PEA than regular E10) once every 10 other fuel fill. The higher octane may not add any HP but the additional detergent helps cleaning direct injection cleaning in your turbo engine. 

Save your money for future intake valves cleaning instead. Something like walnut blasting that many VW TSI engines also need because of Direct Injection only system in 1.2 Turbo. 

Toyota now only produces D4S dual injections or port injection only systems for this reason.

[solero]

Agree, but it appears to be such a simple check for the pcv. Remove plate pull out pcv. Check /clean/ ballon test/replace close.

The only reason im thinking of doing this is i see wispy vapour mist at idle from my exhaust when outside temperature is around 10c or below.

It doesn't lose coolant or lose any oil. It must be water vapour from combustion, maybe liquid cooled exhaust manifold cooler doing its job. Even when engine is fully warmed up i do notice wispy exhaust vapour. Do other owners get similar behaviour?

Maybe this is normal for this engine?

30k 2016 auto.

[Cyker]

Isn't that normal? A large part of the exhaust gas mix is water, and when it's cold it will condense slightly which is why you see it more in winter until the exhaust gets hot.

It's for similar reasons to why you can see your breath steam in winter on a cold enough day.

[solero]

4 minutes ago, Cyker said:

Isn't that normal? A large part of the exhaust gas mix is water, and when it's cold it will condense slightly which is why you see it more in winter until the exhaust gets hot.

It's for similar reasons to why you can see your breath steam in winter on a cold enough day.

Yes but even when engine is fully warmed up after an hours run?

Under 5c and i would agree.

Good to hear from other owners experience.

[Cyker]

If the exhaust has cooled because you're e.g. in traffic a lot of the journey it can come back - My hybrid is quite prone to this.

That said it's not really cold enough in London to get a lot of steam so it's possible there is an issue, esp. if you're getting this later in the day too and not just the morning.

[TonyHSD]

More water from exhaust better engine burning and overall cat converter work, cleanliness. 
Engine coolant it is normal to get low and evaporate a bit. 
When engine is burning coolant the story is totally different, the smell , the coolant lost, and overall engine work will be different. 
More water vapour behind, better and cleaner burning means. 👍

[solero]

3 hours ago, TonyHSD said:

More water from exhaust better engine burning and overall cat converter work, cleanliness. 
Engine coolant it is normal to get low and evaporate a bit. 
When engine is burning coolant the story is totally different, the smell , the coolant lost, and overall engine work will be different. 
More water vapour behind, better and cleaner burning means. 👍

Thats reassuring, will take a peek anyway just out of curiosity and report back.

[AisinW]

@solero you should record when the car was new or first time you got it. Water vapor is normal in any cars at low temp below 10C. 

If I were you, I will open the intake manifold and clean up the intake valves as much as I could by hand instead.  PCV valve rarely fails in Toyota post 2000s. 

A failed closed PCV valve causes degraded/sludge engine oil because the blow by gas can not escaped. Stuck open valve can cause oil consumption.  

[solero]

6 hours ago, AisinW said:

@solero you should record when the car was new or first time you got it. Water vapor is normal in any cars at low temp below 10C. 

If I were you, I will open the intake manifold and clean up the intake valves as much as I could by hand instead.  PCV valve rarely fails in Toyota post 2000s. 

A failed closed PCV valve causes degraded/sludge engine oil because the blow by gas can not escaped. Stuck open valve can cause oil consumption.  

I have owned the car for just over a year so dont know if its like this from new. the vapours only visible during autumn/winter (less than 10c), wispy vapour never visible in warmer spring or summer months. Its more visible at night with headlights from car behind me turned on in close proximity at idle.

Its not that much of a concern to warrant an intake clean. Idle is perfectly stable, starts slightly sluggish in colder months (an extra crank turn or two), but think thats normal with Di engines and the 9 year old original Battery.

[solero]

1 hour ago, solero said:

I have owned the car for just over a year so dont know if its like this from new. the vapours only visible during autumn/winter (less than 10c), wispy vapour never visible in warmer spring or summer months. Its more visible at night with headlights from car behind me turned on in close proximity at idle.

Its not that much of a concern to warrant an intake clean. Idle is perfectly stable, starts slightly sluggish in colder months (an extra crank turn or two), but think thats normal with Di engines and the 9 year old original battery.

Last mot emissions

[AisinW]

@soleroEverything looks good and water vapour formation is very common in autumn and winter because of colder temperature and lower absolute humidity in %. In summer, we have much warmer temp on the roads. The colder the temp, then the more pronounced the condensation will be. Just a normal dew points.