What Is The Best Way To Tune-up Efi Engines?

[Prami]

Guys, any idea regarding this?

Some people are doing remove the injectors and do the cleanup. And others are using Worth/3M cans and fixed to a machine and do the clean up (run the engine using Wurth/3M cans instead of petrol). I heard this some of my friends, “Don’t remove the injectors, because there is a over-ring around it. It will damage”

What is the best and accurate solution for this?

Edited December 21, 2009 by Prami

[rangerover]

I personally prefer the manual tune up atleast every 20,000Km. I do the machine tune up once a year (every 5000 - 6000 Km). I once had a bad experience with some of the liquid from the machine tune up hardening on my MAF system. No idea how it happened, but it got the car to vibrate in an ad hoc manner at a low idle rpm. Once i cleaned the MAF it was back to normal.

[virensti]

Guys, any idea regarding this?

Some people are doing remove the injectors and do the cleanup. And others are using Worth/3M cans and fixed to a machine and do the clean up (run the engine using Worth/3M cans instead of petrol). I heard this some of my friends, “Don’t remove the injectors, because there is a small rubber bush (ring) around it. It will damage”

What is the best and accurate solution for this?

I say that's one of the best ways to clean out your injectors. (removing and using an injector cleaner) And yeah, if the over-rings get damaged put new ones. Quite a common thing. And yeah getting the throttle body cleaned and ISCV cleaned and that's about it. Some use a pulsing machine as well which does a thorough cleanup of the fuel rail and injectors (after the manual cleanup.) Oh and replacing your petrol filter could help in better performance (in case the old one is blocked)

[Bugatti]

Apart from all this.... there's something most of you guys forget to clean.. that is the EGR valve. not sure bout other makes, but it is very much there in the Mazda non-SVT engines. Carbon build up on this can reduce engine performance.

[ThilakR]

Apart from all this.... there's something most of you guys forget to clean.. that is the EGR valve. not sure bout other makes, but it is very much there in the Mazda non-SVT engines. Carbon build up on this can reduce engine performance.

HI Bugatti,

I need to get my Mazda car checked. Kindly send me a contact of a good place.

My email is [email protected]

Thanks

Thilak

[Ripper]

Apart from all this.... there's something most of you guys forget to clean.. that is the EGR valve. not sure bout other makes, but it is very much there in the Mazda non-SVT engines. Carbon build up on this can reduce engine performance.

Exhaust Gas Recirculation Valve.it's there in many makes including my corolla

did a injector cleanup recently i had to replace mine cos the older one had gone kaput!

[Bugatti]

Exhaust Gas Recirculation Valve.it's there in many makes including my corolla

did a injector cleanup recently i had to replace mine cos the older one had gone kaput!

Exactly my point... most people ignore this part, or don't seem to know about it.

[Prami]

Exactly my point... most people ignore this part, or don't seem to know about it.

Yeah, using that a pulsing machine with can, it will cleanup all of the things. Is it? (fuel rail, injectors, throttle body and EGR Valve)

Edited December 16, 2009 by Prami

[MkX]

Guys sorry if OT. I need to do the tune up as well.

I took the car to Honda agent two days back.. very dissapointed about the service. (check light lit up for about 15mins) BTW they said to clean the throttle body and do the tune up. Error has come from the "Throttle Position Sensor"

I am hoping to do Air filter change / petrol filter change / use fuel system cleaner. Clean/change plugs. Any idea about the cost for these things. (model - EK3)

[Prami]

Guys sorry if OT. I need to do the tune up as well.

I took the car to Honda agent two days back.. very dissapointed about the service. (check light lit up for about 15mins) BTW they said to clean the throttle body and do the tune up. Error has come from the "Throttle Position Sensor"

I am hoping to do Air filter change / petrol filter change / use fuel system cleaner. Clean/change plugs. Any idea about the cost for these things. (model - EK3)

Before replace those parts, please do a scan and get the error code correctly.

And above part prices, depend by the brand.

[MkX]

Before replace those parts, please do a scan and get the error code correctly.

And above part prices, depend by the brand.

Yes they did two scans PGM test and Service test (Thats what they said).. but i din't got any report or some thing from them.. when i did the test "no check light on" it came in the morning while i drive and did the test in the evening. The mechanic who did the test told error came from "Throttle position sensor"

did not gave any error codes, reports to me and charged Rs.2072/= So i presume it's normal that they just verbaly communicate it to customers (staf. Motors).

The whole process took more than one hour which include 10 minutes of test and 30minutes of standing near the car untill "Team break" Finishes. And rest of the time standing infront of nice looking girl to enter the job.

time to time i got rpm drops so wanted to do complete thing done as i din't do any tune ups after i got it for last 4 months.

P.S. No check light after that and every thing is normal.

Edited December 17, 2009 by MkX

[Crazy Life]

Can i know a good place to tune up my Sera engine,it has a 5E engine,first thought to take it to TL but then again I'm a bit curious about the price tag which will come

[rangerover]

Can i know a good place to tune up my Sera engine,it has a 5E engine,first thought to take it to TL but then again I'm a bit curious about the price tag which will come

Ok so i am going to get my car manually tune up sometime next week and get the following done

1. Injectors cleaned/replace if necessary

2. Spark plugs checked and changes

3. ISCV cleaned

4. MAF Cleaned

5. Change air and petrol filter

6. Clean EGR

7. Reset ECU after the tune up

My questions are

1. Would all of the above include a full tune up for a VVTi engine?

2. How often should injectors be replaced and how much could it cost?

[Prami]

Guys, any idea regarding this?

Some people are doing remove the injectors and do the cleanup. And others are using Worth/3M cans and fixed to a machine and do the clean up (run the engine using Wurth/3M cans instead of petrol). I heard this some of my friends, “Don’t remove the injectors, because there is a over-ring around it. It will damage”

What is the best and accurate solution for this?

Last weekend she had a good EFI tuneup. .

Before clean up the throttle body

Cleaning the system, using WURTH LBW 400 FUEL INJECTION CLEANER

[Nilantha]

Ok so i am going to get my car manually tune up sometime next week and get the following done

1. Injectors cleaned/replace if necessary

2. Spark plugs checked and changes

3. ISCV cleaned

4. MAF Cleaned

5. Change air and petrol filter

6. Clean EGR

7. Reset ECU after the tune up

My questions are

1. Would all of the above include a full tune up for a VVTi engine?

2. How often should injectors be replaced and how much could it cost?

According to my exprience Manual clean up is the success way.

1. Injectors cleaned/replace if necessary (yes)

2. Spark plugs checked and changes ( should change)

3. ISCV cleaned (yes)

4. MAF Cleaned (yes)

5. Change air and petrol filter (yes air filter but no need Petrol filter)

6. Clean EGR (yes)

7. Reset ECU after the tune up (yes should do)

[Prami]

According to my exprience Manual clean up is the success way.

1. Injectors cleaned/replace if necessary (yes)

2. Spark plugs checked and changes ( should change)

3. ISCV cleaned (yes)

4. MAF Cleaned (yes)

5. Change air and petrol filter (yes air filter but no need Petrol filter)

6. Clean EGR (yes)

7. Reset ECU after the tune up (yes should do)

Its up to personal choice mate. That's what I said. B'cos I had experience on both ways.

I have done as follows:

1. Injectors cleaned/replace if necessary (Using Wurth)

2. Spark plugs checked and changes (Cleaned)

3. ISCV cleaned (Cleaned)

4. MAF Cleaned (Cleaned)

5. Change air and petrol filter (yes air filter but no need Petrol filter)

6. Clean EGR (yes)

7. Reset ECU after the tune up (Done at home)

Last Year, I have done a manual tuneup. But didn't change any performance and there was a RMP issue with my car (when switch on the AC). Now it has solved after this tuneup. I didnt say, manual tuneup is not good. But removing injectors again n again, its not good for the vehicle. ahh?

Using manual tuneup we cant clean full system at once... But using this (running with some FUEL INJECTION CLEANER), we can do it..

Edited December 22, 2009 by Prami

[rangerover]

I guess both methods have their fair share of merits and demerits. However my greatest issue is the slight vibration after the engine warms up (u see the passenger side front seat slightly vibrating and feel it in the steering slightly). Also pulling power is not that great, with fuel efficiency around 8.6 in colombo for a 1500cc 121. So far have done a auto clean. Need to take it toyota lanka or the toyota specialist in kotte to do a manual check of all components and see if any needs replacing or cleaning and do a tune up. some say the radiator fan could be causing the vibration.

I guess machine tune up is good as preventative maintanance, but if you got specific issues to sort, always better to do a manual to set base. It worked on my Allion. Just my two cents

[harshansenadhir]

Its up to personal choice mate. That's what I said. B'cos I had experience on both ways.

I have done as follows:

1. Injectors cleaned/replace if necessary (Using Wurth)

2. Spark plugs checked and changes (Cleaned)

3. ISCV cleaned (Cleaned)

4. MAF Cleaned (Cleaned)

5. Change air and petrol filter (yes air filter but no need Petrol filter)

6. Clean EGR (yes)

7. Reset ECU after the tune up (Done at home)

Last Year, I have done a manual tuneup. But didn't change any performance and there was a RMP issue with my car (when switch on the AC). Now it has solved after this tuneup. I didnt say, manual tuneup is not good. But removing injectors again n again, its not good for the vehicle. ahh?

Using manual tuneup we cant clean full system at once... But using this (running with some FUEL INJECTION CLEANER), we can do it..

running with injector cleaning adhesives is something i did with mechanical injectors and felt it's too strong and i'm not sure of the result of it's burning inside the chamber. Also we're underestimating the potential damage can cause by injector cleaning liquids where engine suppose to run on using the liquid. All carbon deposits on injectors and combustion chamber will at once go and land on the cat. also we're at once sending all that jargon into the combustion chamber which we never know the impact of.

[Prami]

I guess both methods have their fair share of merits and demerits. However my greatest issue is the slight vibration after the engine warms up (u see the passenger side front seat slightly vibrating and feel it in the steering slightly). Also pulling power is not that great, with fuel efficiency around 8.6 in colombo for a 1500cc 121. So far have done a auto clean. Need to take it toyota lanka or the toyota specialist in kotte to do a manual check of all components and see if any needs replacing or cleaning and do a tune up. some say the radiator fan could be causing the vibration.

I guess machine tune up is good as preventative maintanance, but if you got specific issues to sort, always better to do a manual to set base. It worked on my Allion. Just my two cents

Agreed with "rangerover".

I guess both methods have their fair share......

[rangerover]

When you change an intank fuel filter, you usually dont change the fuel pump in the assembly. Now this is something that could affect fuel pressure and cause rough idle and poor acceleration? Am i right?

[shanX]

When you change an intank fuel filter, you usually dont change the fuel pump in the assembly. Now this is something that could affect fuel pressure and cause rough idle and poor acceleration? Am i right?

Does usually all the cars come with a intank fuel filter?

[rangerover]

Does usually all the cars come with a intank fuel filter?

Im no expert, but i know that the 121 and the allion does.

[Prami]

When you change an intank fuel filter, you usually dont change the fuel pump in the assembly. Now this is something that could affect fuel pressure and cause rough idle and poor acceleration? Am i right?

I think doesn't have a Intank fuel filter in all cars.

Any experts please comment.......

[Nilantha]

I think doesn't have a Intank fuel filter in all cars.

Any experts please comment.......

i don't know about other models. mine AE110 it has fuel filter in side the fuel tank fitted to fuel pump. i replace it once from Jennine one price was 575/=

Edited December 24, 2009 by Nilantha

[mishiran]

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