Injector Cleaning On Vehicle Test?

[landtoy80]

Is there a way to test your injectors to tell if they need to be removed and cleaned?

This may/maynot be related to my code 25 26 post????

If running a fuel injection cleaner helps some then I would guess that you need to have them sent in. If you have 250k miles then It would be a real good thing to send them in. I would bet they are not atomizing the fuel properly, some may even dribbling. Most of the injectors we have sent in over the years have ranged from dribble to flow problems. there has not been one injector that did not need cleaning. This is with engines with a lot less miles then your. later robbie

[Bruneti]

Robbie, who do you use for injector cleaning? RC Engineering?

[Beowulf]

>> Sold I have a 14" boat now <<

Gonna get cozy when you take the fishing with you.



-B-

[landtoy80]

Originally Posted by Beowulf

>> Sold I have a 14" boat now <<

Gonna get cozy when you take the fishing with you.



-B-

Its a chitchat inside joke


I called the local Toyota dealers to see what they say.
One said they don't service the injectors, they replace them. $168 per injector, thats just the cost of the injector

Another said to use the Toyota FI cleaner or they could use the spray can method of installing a injector cleaner to the fuel rail. He said there is no real way to test the injectors as I have a OBD I. If I had ODB II they could test them. They don't do the clean, test and ballance method.

The thurd one says they can test and/or clean them if I bring them in.
I think the service person thinks I have ODB II.


Does the injector leaning via the fuel rail work as good so removing them?

Anyone ran a can of cleaner or had a shop clean them and then send the
injectors in for service?

[Rookie2]

Seems like I remember reading something in the FSM about checking the injectors, but I don't recall it being a very thorough evaluation process. Something like "pull the injector and see if it sprays a fine mist at regular intervals".


Rookie2

[Beowulf]

Originally Posted by landtoy80

Its a chitchat inside joke

I try to stay out of Chat most of the time. They talk nasty, post nekid pics, and eat their young.



-B-

[Steve-O]

We have seen a great improvement in every vehicle that we re-built the injectors for, no matter what the condition or mileage. READ ME


Steve

[Cruiserdrew]

Originally Posted by Steve-O

We have seen a great improvement in every vehicle that we re-built the injectors for, no matter what the condition or mileage. READ ME


Steve

Steve-That looks like a good deal with no down time (which is of course the problem with the remove and send out method). WHo does your work for you? Anyone know how difficult it is to do a remove and replace with the injectors?

[Montana Cruiser]

Originally Posted by Steve-O

We have seen a great improvement in every vehicle that we re-built the injectors for, no matter what the condition or mileage. READ ME


Steve

Your site mentions clearing up a rough running engine and restored power, have you noticed increase in gas mileage? Not over stock, but back to stock? All things being equal, can a dirty injector aid in poor mileage?

[HZJ60 Guy]

Injector cleaner WILL NOT CLEAN DIRTY INJECTORS. Regular use will help keep them clean, but it will not clean those already dirty.

They must be removed to be cleaned.




TB

[DRTDuck]

Originally Posted by Cruiserdrew

Steve-That looks like a good deal with no down time (which is of course the problem with the remove and send out method). WHo does your work for you? Anyone know how difficult it is to do a remove and replace with the injectors?

Ditto Cruiserdrew's questions. I have been contemplating removing and sending in. I have read George's process a couple of times and think it would definately be beneficial to my rig. However, with a spouse that works/travels, and two rug rats to get to school everyday, find 2 or 3 days of down time during a week is tough.

[e9999]

Originally Posted by HZJ60 Guy

Injector cleaner WILL NOT CLEAN DIRTY INJECTORS. Regular use will help keep them clean, but it will not clean those already dirty.

They must be removed to be cleaned.




TB

isn't that a self-contradictory statement?

[clownmidget]

Well, not to go out on a limb here but I'm betting that RC Engineering does the service for MAF. Or MAF has taken some serious liberties with the text from RC's site. Here's some light reading for comparison (http://www.rceng.com/service.htm#INJECTOR) vs (http://www.man-a-fre.com/pa/calibratedinjectorsets.htm).

At any rate, I pulled my injectors and sent them to RC prior to installing my s/c on the advice of Robbie & Christo a few years ago. IMHO, you will always have "down time" when doing work like this. Even if you have the clean injectors ready to go you should plan on an entire day to pull the old ones and install the clean ones. At any rate, RC does do exactly what they say and had my injectors back in my hands in about 36 hours. Pretty amazing in my experience. They send a complete read out and it showed that only two of the six injectors were performing at 85% or better. Two were just dribbling. I posted it long ago that I thought it was one of the best things for the money. Big difference in the way the truck ran.

Mike R

[Safado]

Originally Posted by clownmidget

At any rate, RC does do exactly what they say and had my injectors back in my hands in about 36 hours. Pretty amazing in my experience. They send a complete read out and it showed that only two of the six injectors were performing at 85% or better. Two were just dribbling. I posted it long ago that I thought it was one of the best things for the money. Big difference in the way the truck ran.

Mike R

Mike,

I searched a bunch of your old posts and couldn't find this. Do you still have it handy? Thanks

[woody]

http://forum.ih8mud.com/showthread.p...light=injector

[Steve-O]

We do use RC yes, but the benifits of going through us comes from the no downtime. We do send the print out's with the injectors also so you can see what the new flow ratings are, its pretty impressive. We did see an improvment in fuel mileage, and a slight performance increase. Overall the vehicle just runs much nicer. A dirty injector will definately waste fuel mileage, even more if you are at slow speeds or it is leaking. Keep in mind that every vehicle will yield different results. Thanks, Steve.

[Eric_FJ40]

Originally Posted by Steve-O

We do use RC yes, but the benifits of going through us comes from the no downtime.

Steve:

For those of us less concerned about downtime than the (temporary) hit to our wallet for the core charge:

Can we send in our injectors first and then wait for the cleaned set to come in for just the base price?

Eric

[Safado]

Thanks Woody...I guess I misread the post. I thought he was saying that he actually posted the report that he got back. I just wanted to see how detailed the actual report was.

[Steve-O]

Originally Posted by Eric_FJ40

Steve:

For those of us less concerned about downtime than the (temporary) hit to our wallet for the core charge:

Can we send in our injectors first and then wait for the cleaned set to come in for just the base price?

Eric

Eric, of course! If you send in your injectors first, we can rebuild those or send you a rebuilt set without the rediculous core charge. Sorry it is so steep, we just can waste any of the sets we have here. Thanks, Steve

[clownmidget]

Originally Posted by Safado

Thanks Woody...I guess I misread the post. I thought he was saying that he actually posted the report that he got back. I just wanted to see how detailed the actual report was.

Yeah, I can scan it and post it later tonight.

[Steve-O]

Originally Posted by Eric_FJ40

Oh - I totally understand! I'd just rather skip the core charge hassle since downtime would not be an issue for me. It's good to have options!

thanks for the quick reply!

No problem, you can also call us here if you have any other questions. I definately reccomend rebuilding the injectors for anyone with doubts about the condition of their injectors. I have sent out a few sets for my family members with other cars, great results for those as well. Thanks, Steve.

[landtoy80]

I like the idea of the exchange BUT we don't get a report on how bad our injectors were.
If you have OCD like I do, you will want to know what condition they were.

Now if Steve-O would add this service to the exchange....

[landtoy80]

<<< Injector cleaner WILL NOT CLEAN DIRTY INJECTORS. Regular use will help keep them clean, but it will not clean those already dirty.

They must be removed to be cleaned.>>>

Toyota EFI Injector Cleaner Quote from the can.
"Toyota EFI injector cleaner is made to remove deposits from injector nozzles."
And from the WARNING lable on the can.
"...Any deposits on the injector nozzles will be cleaned off after approximately one hour of driving...."

Does Toyota use "false advertisement"???

One of the Toyota dealers said "Removing injectors and having them cleaned was popular in the 1990's"

Another dealer says to have them test the injectors for about $160. Then if they need to be removed I will still have to pay the cleaning charge. May as well remove them and have them cleaned for that price.

[landtank]

Steve-0, how long do you hold our core charge hostage after receiving our cores?

[landtoy80]

Originally Posted by landtank

how long to you

How long to you, too

First RC does not rebuild toyota injectors. They clean them, to get to the orignal condition. This is the conversation I have had with them in the past. It seems that the Asain design does not lend it self to rebuilding. so it is just cleaning. That said, the results can be impressive at times, some times not so much.
I disagree with HZJ60, even today certain deposits will acculmite with use in a Petrol engine, vs a Diesel engine. If you use only regular fuel in a gas engine, (some better than other). You will over time plug up the injectors. some injector cleaners work better than other. But I believe that cleaning on a injector stand is the best. We use RC also and usually have a 80 series on the self. Both 3FE and 1FZ. The paper work show how well the injectors are clean up. I personally have not tried the in the engine injector cleaning (other pressure system beside the fuel pump). So I can not comment on it.
But I have liked how the injectors have worked in both rebuilt engines and when we force induction a truck. I do not trust a old injector that has not been cleaned. I have not lost a engine yet doing the things I do when I rebuild or force induction.
I do reccommend getting the injectors clean out of the truck.
No toyota cleaner was some of the most potent stuff on the market for a long time. I used the stuff, it was great. I would smooth a idle out and make for some better ecomany with in a tank full. But our local dealer does not sell it any more, they want to sell the BK44 stuff. I personally use the Red line stuff.
There are other companies that I have used when RC could not deliver when I needed, they did not have the depth of knowledge base RC has.
later robbie

[ultimauk]

Any clues on how long it might take for an average guy to remove and replace the injectors?

[corbs]

Originally Posted by ultimauk

Any clues on how long it might take for an average guy to remove and replace the injectors?

Just what I was wondering!