Performing a Fuel Injector Balance Test on a Direct Injected Engine using the Xtool D8 Scan Tool.

[@737mechanic]

Xtool D8BT Scan Tool amzn.to/3Mv7yXS LAUNCH X431 V+ PRO Elite 4.0 amzn.to/3RWjeWG

[@skreetfilms2242]

The best explained, man you literally explained the fuel injector balance test the best. I watched 1 video where the guy was saying to just check for any noticeable differences in the psi readings. You have to do things by the Manufacturers book with cars. Thanks a lot, clearly the difference between a tech & backyard guy!

[@mateo801]

I have the same scanner and was trying to make sense of the pressure drop test I did with it. Cylinder 8 has a pressure drop of 4.8. Thank you for the clarification. This is the good side of KZbin. You have a new subscriber. Thank you.

[@737mechanic]

Thanks buddy.

[@letzrockitrite8469]

Great explanation sir... learning and grateful ... thanks

[@joaquinaguirre2976]

Thank you very much, excellent video with excellent information, really appreciated. Thank you Mr.

[@rehanautoelectrician5411]

Your all video's very important and very helpful

[@PaulA-ok4ky]

This was just what I needed to know,thanks man...😎

[@BuckteethMechanic]

Thank you!

[@rowdyrick7091]

Very helpful Sensai

[@siemensol83]

Thank you

[@raymondwallace1031]

Good stuff man

[@daysofgrace2934]

It's the first step to do and from there if any cylinder is showing more than 1 than perform a leak-down test to confirm before doing an engine rebuild

[@markyakubovsky3380]

Good video!! I just ordered the D8s. I suspect an injector issue on my Buick Lesabre. Can't wait to check it out. Thx for the guidance!!

[@andyhodgev.a.g1291]

A great little video that you have put effort into here fella nice one

[@johnmitchell8925]

From what I've researched GDI engines inherently have a rougher idle than port injection even when brand new. I've owned two brand new 1.4 GM Ecotec cars, One was a non-turbo port injected engine idled as smooth as glass for the two years I owned it. Then I bought a brand new 2018 chevy cruze turbo GDI engine and i noticed immediately that it idled less smoothly Ive owned it 5 years now with no issues but it only has 20k miles 🤣😂

[@ysitrim88]

Awesome very informative 👍

[@rehanautoelectrician5411]

Hello sir how are you My dear sir your are only 1 best teacher

[@katzenpapa]

Did you find the steps to the test on Allddata? Thanks for the video!

[@user-hr5dc4ly3q]

I purchased D8W new with free extra battery and AD20 pro in $444

[@briansteele7664]

Nice video. Gonna help a lot. Thanks.

[@EdwinTata-rx5zk]

Yes thanks sir but in need no the best test for somell car like yeart

[@user-hr5dc4ly3q]

Master you have very good book learn how use scan tool so can you send to me if in PDF

[@tomryan9616]

Will the d7 do this test? Thanks for the great lesson.

[@coldfront7914]

Yes the new d7 will do this test as on 08/2023

[@RoadHeros610]

Also how would I test that with a high rpm misfire ?

[@happydays454]

D7 does it I got it thanks

[@happydays454]

I got 2 injector s at 45

[@himeedajew]

Great vid and explanation just curious where didn you get that list of instructions to perform this test?

[@737mechanic]

pro demand.

[@737mechanic]

@@sheepdog3828 No, it comes with 3 years of free updates then after that it is 199.00 a year but you will not need to update it as long as you are using it on your own cars and they are covered by the software that it currently has. Where did you see $174 a month.

[@737mechanic]

@@sheepdog3828Search for Mitchell 1 diy and alldata diy, both are simular and offer plans as low as 3.61 a month.

[@user-hr5dc4ly3q]

When you press in injector 1 button what happens in injectors is stop working ?

[@nick_6.698]

What model scan tool would you recommend for mainly diesel pickups. Powerstrokes and duramaxs. I’m looking for one I can turn on and off injectors

[@737mechanic]

My Autel has been rock solid on Diesel's amzn.to/44vNH2U but I am sure the xtool D8BT will get the job done also. The nice thing about Amazon is if one doesn't do what you need send it back and get the other one. amzn.to/3YKeZ4d

[@user-hr5dc4ly3q]

But when filter bad inside injector how you know in this test

[@737mechanic]

If the filter is clogged up there will not be as much of a pressure drop.

[@user-hr5dc4ly3q]

@@737mechanic thank you very much

[@SS-U23]

Thank you for the this informative video. By the way, how about LAUNCH X431 pro5? Do you have any ideas on the pro 5? I cannot know if it's for the US market or it was designed for countries other than the United States.

[@737mechanic]

I think it will work in any county.

[@_AndromedaGalaxy_]

i thought power balancing the injectors would mean you hit a button and the tool changes something to make them flow more equally. this seems more like just a way to check for a bad injector rather than enhancing power output.

[@737mechanic]

Yes, you are correct. Scan tools are for troubleshooting and diagnosing issues. A performance programmer is more what you are talking about.

[@804MRMAN]

It can be used to code and reprogram but it's not as simple as pressing a button, you have to code it through CANbus.

[@505fastlife6]

Two questions for you sir? Where did you get the procedure and would it be different on the Ford 3.5 Ecoboost?

[@737mechanic]

I used Prodemand for the procedure and ford has a test called Relative Injector Flow test that depending on the year make and model some scan tools can do. All prodemand says about doing that test is to follow the scan tool directions. It is a straight forward test that the scan tool cranks the engine while monitoring each injector's flow rate.

[@nonenone1249]

will this let you command the fuel pressure on a duramax diesel to test the cp3 test? thanks

[@737mechanic]

Yes

[@PaulA-ok4ky]

Changed fuel injector on cylinder that was having problem, tested after change and still psi way off from others,right back where I started... can someone please help?

[@harrythomas5056]

How would you do this test with the Autel MS906BT

[@737mechanic]

The same exact way. The Autel should have the same capability.

[@arthurfricchione8119]

Very informative video. How do you like the xtoolD8. I do have a launch X431 not the tablet but I guess the mini looking for a larger screen in a respectable tool. Any recommendations? New subscriber I noticed your the 737mechanic. I’m a retired F-14 flight test mechanic. Maybe we have the same background? Anyway I have seen the D8 becoming popular and am trying to make a decision on a more inclusive scanner with more functions and a larger viewing screen. I’ll be following your channel. 👍 Artie

[@804MRMAN]

I know it's late. But I would recommend the D8 and up from XTOOL. With the D8 being at a mid level price with a high end operating system on par with a scan tool that would cost you upwards of $1,500-$5,000

[@RoadHeros610]

Hey I jus eatchedbanithe rif your videos with you using your launch I couldn't find your bakancr test video with the launch ..however looking at this video it looks as if you have a fuel rail with 5 to 7 psi ..are all those cylinders in 1 bank ?

[@737mechanic]

This is a v8 5.3L engine so all 8 cylinders are for both banks. The launch x431 pro does have the same function.

[@RoadHeros610]

@@737mechanic well actually what I mean is that you have 2 fuel rails it looks like u have 4 injectors pushing under 30 psi all around 25 or 26 so I'm thinking that one bank of cylinders has a lower psi ..so that may be from the HPFP or it's roller ..wdyt?

[@737mechanic]

@@RoadHeros610 So the fuel rail pressures are around 500 to 700psi, the 25 to 26 psi you are seeing is the pressure drop when the injectors pulse.

[@RoadHeros610]

@@737mechanic ok

[@victorhoyt4352]

Will this tool not pulse the injectors like you did with the autel in your other video?

[@737mechanic]

Yes it will, but pulsing the injectors is year, make, and model dependent. This truck has high-pressure direct injected injectors which means it has a high-pressure pump that has to be pumping and it can only do that with the car running so testing these injectors involves more than doing a simple pressure drop test like you can do on non-direct injected engines.

[@victorhoyt4352]

​@@737mechanicAhh, got you! Thank you for the explanation!! 👍

[@505fastlife6]

Can you please link the video @victorhoyt4352 is referring to?

[@jasonlee4330]

I just purchased an Autel and had run this test on my wife’s 2016 Escalade with the 6.2 L86, I had just finished a basic AFM delete with the new cam shaft and L7 lifters, and I sent the computer of to AMS racing to have it tuned for the delete, I also upgraded the valve springs and the rocker trunions while I was in there, and I bought some refurbished injectors on Amazon so you can imagine my frustration when I fired it up and it had a rough idle. But I gotta say it was so nice for the first time in my life to sit on my ass in that nice leather seat and check nearly every system on that car with my autel and find one injector that was dropping 20 psi more than the others, I can never go back to living without it haha. On that note anyone know of a good place to buy perfectly balanced injectors that are guaranteed?

[@alexwalker8422]

Rock auto, Amazon is a flea market compared to rock auto.

[@user-hr5dc4ly3q]

You advice to purchase this scantool

[@737mechanic]

For the money it is hard to beat. I highly recommend it.

[@user-hr5dc4ly3q]

@@737mechanic if use obd 300cm extension then you can take this scantoll on the engine and will charging automatically and no need wifi scantool

[@oceanrunner00000]

Where is the sheet to print?

[@737mechanic]

What sheet to print?

[@calholli]

If you notice on this-- all your odd injectors are around 26psi, and all the even injectors are around 31psi. But they are very similar on each bank. So I wonder if there's just a flow issue with their rail design that causes it to have a different reading on each side? Maybe the pressure regulator is closer to one side and allows it to depressurize just a bit faster?? It's a little weird that one whole bank is lower than the other whole bank.

[@737mechanic]

Thats a very good point. I might have to look deeper into that and see what could cause that.

[@user-hd2db4ti5l]

I have the same issue. Any updates?

[@737mechanic]

@@user-hd2db4ti5l The truck runs good and gets good gas mileage so I haven't worried about it.

[@jasonlee4330]

Interesting observation. I come from a residential plumbing background and we are taught that when hooking up a double water heater situation if you don’t create equal distance from the infeed tee that the water heater closest to the infeed would always work harder and wear out sooner. I noticed on my 2016 Escalade with the L86 they do account for this and feed it to a splitter that has equal length pipes feeding each fuel rail.

[@JCGible]

😁

[@gary8866]

Oh man you're dithering

[@737mechanic]

?

[@TheAngelacevedo]

I heard the newer D8 version are running Android 10, Do you know if the D8 running Android 5 Will receive an Android 10 update?

[@737mechanic]

I have no idea. I wouldn't worry too much about what android version any tool is running.

[@TurnThemWheels]

Was honestly wondering the same thing

[@rowdyrick7091]

Very helpful Sensai