Fuel Injectors Cleaning at Toyota 3S

[vitz_2006]

Anyone having experience of Fuel Injectors cleaning at Toyota 3S. As far as I know ,they put the Fuel Injectors assembly in a machine and wash it with some kind of liquid cleaner for 30 minutes. They charge Rs. 2500/- for this .
Is it good enough and worth it ?

Comments please

[rajaatta]

Ultra sonic cleaning with variable pulse machine and regular high flow pressure along with US will do the job but I doubt about the 3s as all of the above mentioned procedure has not been seen in any toyota dealership in the whole lahore. So decide wisely. Or go to Magic motors in lahore they had both ultrasonic cleaning plus the flow quantity test bench also. Before cleaning ask them to measure the flow rate of each injector at idle pulse width on test flow bench and also test the fuel spray pattern then ask them to start the cleaning and after cleaning ask them to recheck the quantity test at idle and flow pattern so you can judge that what difference has kicked in. But if the pattern and quantity and spray pattern test remain same as it was before cleaning then you had not diagnosed it well...

[vitz_2006]

Ultra sonic cleaning with variable pulse machine and regular high flow pressure along with US will do the job but I doubt about the 3s as all of the above mentioned procedure has not been seen in any toyota dealership in the whole lahore. So decide wisely. Or go to Magic motors in lahore they had both ultrasonic cleaning plus the flow quantity test bench also. Before cleaning ask them to measure the flow rate of each injector at idle pulse width on test flow bench and also test the fuel spray pattern then ask them to start the cleaning and after cleaning ask them to recheck the quantity test at idle and flow pattern so you can judge that what difference has kicked in. But if the pattern and quantity and spray pattern test remain same as it was before cleaning then you had not diagnosed it well...

Just checked with Toyota Walton and they claim they its a THREE stepped procedure (I dont remember the steps ) .
Also checked with Magic motors and they confirmed that both Toyota Garden and Toyota Walton do it but did not confirm if they follow all steps or not

Regarding your point of diagnosis , currently I am not facing any problem with injectors , all I am interested is in preventive maintenance as my Vitz has recently done 80K.

[ziyad.ahmad.391]

Why dont u use liqui moly injector cleaner first then see if it makes a difference!..im also a big big advocate of preventive maintainence like u bro!

[siraj_7]

Abroad ultrasonic cleaning is standard practice for cleaning carburators and injectors alike. There is no guarantee that cleaning with after market products does any thing good.

[rajaatta]

Just checked with Toyota Walton and they claim they its a THREE stepped procedure (I dont remember the steps ) .
Also checked with Magic motors and they confirmed that both Toyota Garden and Toyota Walton do it but did not confirm if they follow all steps or not

Regarding your point of diagnosis , currently I am not facing any problem with injectors , all I am interested is in preventive maintenance as my Vitz has recently done 80K.

For preventive maintenance just replace the in tank fuel filter and you are good to go for next 50k kms if the filter is not changed then the injectors will fortunately get clogged sooner keep the fuel filter tidy and you will not face the problem of the clogged injectors.

[Xulfiqar]

Abroad ultrasonic cleaning is standard practice for cleaning carburators and injectors alike. There is no guarantee that cleaning with after market products does any thing good.

ultrasonic cleaning is avoided in most cases specially with expensive injectors like the delphi ones GM uses (about 100 dollars a piece) - in 80% cases a cleanup then changes the injected volume of the injection and you may see that your engine long term fuel trim is always quite a bit tilted to the negative side.

some manufacturers (e.g. BMW) actually provide room for this correction where the technician can write such information to the ECU.

[vitz_2006]

Okay, I am confused now..... My question now is SHOULD I GO FOR ULTRSONIC FUEL INJECTORS CLEANING FOR MY VITZ 1.0 AS PART OF "PREVENTAIVE MAINTENANCE" AT 80K MILEAGE OR NOT?

[Xulfiqar]

Okay, I am confused now..... My question now is SHOULD I GO FOR ULTRSONIC FUEL INJECTORS CLEANING FOR MY VITZ 1.0 AS PART OF "PREVENTAIVE MAINTENANCE" AT 80K MILEAGE OR NOT?

No - do not. - if your engine is running good and you dont see any errors or symptoms of lack of fuelling then leave it alone.

[sufian_noshad]

People make a big issue out of little things. You dnt need ultrasonic cleaning mate. Besides you can get yourself a portable ultrasonic cleaner and clean them as many times as you like. If there is not a problem you dnt need to cure it

[Xulfiqar]

People make a big issue out of little things. You dnt need ultrasonic cleaning mate. Besides you can get yourself a portable ultrasonic cleaner and clean them as many times as you like. If there is not a problem you dnt need to cure it

the story always starts like this

• yaha petrol me milawat hai - injector kharab kardetay hain - har saal injector service karaya karo hum se - to set rehe ga

ower nods his head in agreement.

These shops need business - they will make up stories for business.

[sufian_noshad]

the story always starts like this

- yaha petrol me milawat hai - injector kharab kardetay hain - har saal injector service karaya karo hum se - to set rehe ga

ower nods his head in agreement.

These shops need business - they will make up stories for business.

Bhai shaq ka koi ilaj Nahi hota. And people who have these treatments on there injectors and likewise then swear by these and convince others to do so as well.

[vitz_2006]

Ok, understood..... No ultrasonic cleaning is required.
One last question (hope you won't mind it), should I or do I need to use "fuel injector cleaner" and /or "fuel system cleaner" liquid instead, for preventive maintenance as I am about to change my fuel filter in next few days

[Xulfiqar]

Ok, understood..... No ultrasonic cleaning is required.
One last question (hope you won't mind it), should I or do I need to use "fuel injector cleaner" and /or "fuel system cleaner" liquid instead, for preventive maintenance as I am about to change my fuel filter in next few days

no - I would not use any fuel injection system cleaner if the car is operating fine, however if you do choose to use fuel injector cleaner then understand how it cleans, it relies on heat to complete the cleaning process, meaning it softens any varnish as it passes and then relies on heat soak to let it work - the next time to start the warmed up engine - the fuel flow will blast away the gunk. Its not a timely requirement by any sense. It sometimes helps out if you have a phantom misfire or a strange idle miss or your misfire count on the ECU is a bit high.

such product used to be sold as caltex CX3 in Pakistan at petrol stations.

btw the fuel filter on these newer EFI cars with dead head injection system (missing return line) is quite long life as the fuel filter only filters out fuel that is actually going to the fuel rail, unlike the old system which was constant flow.