Fuel Injector Swap Setup In HP Tuners, How To Get Your New Injectors Working!
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- เผยแพร่เมื่อ 25 พ.ค. 2019
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You have some of the best tuning videos. You always cover what other people don't. Thanks
DUDE THAT COMMERCIAL WAS FRIGIN AWESOME!!!! :) I didnt even watch the video as I dont need it yet, but your ability to edit along with your tuning content is SPOT ON!!!! You make is son nice for us to see the tuning screen as well as you and both are perfect!
Thank you soo soo much for helping us that are new to tuning. You seem to be one of very few only people that is willing to help instead of making money off of people trying to get a helping hand. Hopefully you are well, and please give us some more good content.
Best wishes Kyle
These are honestly the easiest to understand videos I have watched. Something I just figured out today that you may of covered was the math required to hook a wideband up to get the afr error histo.
Thank you for the work you have done it has been so useful to me and my build.
I am building a 1998 c5 Corvette and have been swapping out everything on the upper engine.
Seems like every question I have had, you have covered at some point in time on a Gen3.
-Thank you.
I went from knowing nothing about tuning to installing my fuel injector and almost perfectly tuning them in minutes. Thank you
Your awesome. Thanks for all the information
bro I literally just did some mods including reflowed injectors lol, your the best with these vids plz dont stop lol
Man, I'm just giving the people what they want, lol! It helps having great viewers out there who ask questions and give suggestions!
Great detail on installing tune on injectors
Man I love your videos they're so informative that helped me on the gen-5 stuff dramatically but I did notice you left out some key information on this video on the injector data that's needed changing the kPa is just the first step there are two other major steps involved other than that keep up the great work love the channel
Share the knowledge, brother, might save someone searching in the future! Thanks for watching!
Great video!
looking to do a cam and heads in the future so more vids on controlling timing and fueling,
Thank you, again.
Do u have a video on injector change on a gen 3 p01 411 with the stock return rail
Thanks
U have some great videos man
Goddamn it, this made my day. Thank you!
Have you done a video on what to switch over when going to a return style system on a gen4? Appreciate the vids helped me get my 5.3l on 20psi daily drivable!
Great video. I’m looking through your videos, so I apologize if you’ve done this, but just another video idea if not: I’m going to a larger DBW throttle body on my Gen 3 and have no idea what all needs changed initially NOR what to monitor to dial other parameters in (IAC steps, scalar, etc).
Man other tuners make this seem like solving a differential equation when they talk about tuning new injectors , but it really simple thanks for the clear video kyle
thanks for the video! When are you going to post your video on tuning Meth injection with the smaller pulley ? :)
If you want to get your new injectors even closer you can monitor short term fuel trims to get them almost perfect before you start tuning.
Hi do you recommend a full retune of the ve table after an injector swap, or is the scaling all you need to do?
Hey guys, Love the channel. I have a cam with a 109 lsa. Im curious if i need to delay my injector timing to keep from loosing fuel into a still open exhaust valve. cant really find any info on this
I have an LS2 swap. I bought some Deaschwerks 44lb injector. The flow curb starts at 53lb instead of 44. DeatschWerks said it's because the fuel pressure is 58 psi. And the car will barely run. When I set the flow curve for 44 it runs a lot better, but it's extremely lean. Do I need to do a MAF tune or a VE tune? I have a MAF installed.
Do you have a video on inputting injector data when you have the info from the mfr? I have some from ID with all the data, but it seems like you can only input a couple things on a gen 4.
Great videos! Newbie here. 1999 c5 just finished Cam,(BTR stage 1 blower cam) heads (799 ported heads), A&A V3si supercharger install with 80lb Deka injectors and a 3 bar MAP. Would like to drive the car to a professional tuner about 80 miles away. I have HP tuner setup. What changes can I make just to mildly drive the car to the tuner shop?
I have a lh6 with stage 2 v2 btr cam headers cold air it has been tuned I have the aem afr and hp tuners I bought 42lb injectors is there a simple turn fuel back a little table I'm learning hp it's a lot to take in at once lol thanks so much
Hi, so I have a sloppy stage 2 cammed 2005 5.3 that I put a LS1 intake with injectors (12555894). I pulled down a Corvette/Camaro tune to see what the flow rates were. They are higher than the stock flow rates for the Tahoe 5.3. My questions are should I just replace the flow rate data from the 2000 Corvette tune to get me started or is there more I need to do Also, do I need to do anything with Pulsewidth in this case? The video left me wondering if the 1.05 calculation is needed in this case. Any help would be appreciated. Thanks, Keith
After adjusting my injectors to were the car runs good, now I cannot control timing under boost because my cylinder air mass is going above 2.8 Grams, while the table only goes to 1.2 for timing.? Is this normal with only 8psi boost?
thank you sir
Hey Kyle do you think you can do a follow up to this video with people running a vacuum referenced fuel pressure regulator such as converting a persons factory fuel system to a full aftermarket return system. I feel like there is some great info you could bring to the table
Sure thing!
Im new to hp and hoping to safely recalibrate my truck for some recent upgrades after a recent upgrade to the cam and displacement. Could u plz tell me what specific fuel settings in the hp software i should be looking at to dial in the afr? Any help would be 👍
You did say that we would have to retune the VE and MAF tables once we install bigger injectors, would we also have to do the same if i were to install a higher flow fuel pump?
If you upgrade the injecters as well as adding a supercharger, do you need to change the x-axis psi?
Hey bud are you going to make a video about eoit for injector and cams can you help with that for gen3
hey Klye im trying to add gen iv 36 lb flexfuel injectors (12594512) to my gen iii LQ9 (for future cam etc) on my P01 platform is this all i have to change? (in the vid?) i see lots of ppl talking about offsets vs volts ,short pulse adder etc? im just un sure of how to change the data from gen iv to iii any help would be much appreciated thx keep up the great wk! cheers
Quick question, i installed low flow direct injectors on my 2015.gmc.sierra 6.2 by mistake ,it had nominal flow stock, can i tune the low flow to where they can work?
I’m getting hptuners next week. Can you do a remote initial tune for my cam and other mods and if so how much would it cost me?
Can you tune a set of low impedance injectors where high impedance injectors were used with mpvi2 or will resistors be needed this is a LS computer any help would be great I am new too tuning and have no experience
I wanna see how much fuel we need for certain amount of power video like what we need for 400 hp or 600 or ever 800hp. So how much fuel we would need too feed the ls engine thanks
I’m new to hp tuners but have a problem with pressure being to low 46psi don’t know why tried everything new pump and several fuel pressure regulators filter , etc with new motor and headers and exsaust do I delete ltft or try to adjust slowly any ideas or comments would be appreciated I’m driving a 03 Silverado 5.3 mostly stock alittle cam and flat to piston but that’s it where am I going wrong
New r&r on lq4put 799 heads and tbss intake 34# injectors Texas stage 2 cam how much fuel and air am I going to need to make it idle also return less rails add filter regulator 58 psi pressure
P01 what about the boundary injection timing after a cam swap?
Great videos,would like to see some 5th gen torque management for 6l80e.
There will be one coming up very soon, keep your eyes posted!
Thinking about adding methanol/water injection on my Silverado nitrous build. Looking for a little safety cushion with some larger gains.
It's been one of the better mods I've done, good bang for the buck.
HP tuner only allows 63# as max size, how do you adjust for higher flow rate?
Where can I buy the HP Tuners MPVI2 and software to run in my hp laptop?
You have a video on tuning a 102 tb for a 2005 vette.
Now how you do this on a dodge that uses IPW vs Fuel Mass?
Great videos!! Keep them coming. Also I have a 03 Denali, I did a lot of stuff to but I’m having problems with the aeromotive 340 fuel pump I put in and don’t see a way of turning it down on the older ecus it’s running at 100 psi and don’t know what to do? Any thoughts
Aftermarket fuel pressure regulator is probably your best, most reliable bet since you can't adjust voltage through the ECU.
Goat Rope Garage ok cool, what do you like better, return fuel or returnless fuel systems? I have been going back and forth on them, the truck is returnless.
I'd do a return system since you can't adjust voltage, put the regulator on the return leg of your fuel line. You'll be good to go!
If the manufacturer provides all the necessary data/tables, will the vehicle operate the same prior to the install? This video is for tuning for new injectors without knowing that exact data?
As aways love all the vids. Do you do one on inj. duty on 5th gen
I talked about it on some of the 5th gen videos but I don’t know that I have done one on the specific topic, I’ll try to do that
I kept on scrubbing your videos actually found one You started doing the video cut the video off and set it actually doesn't work then you talk about the room in the garage where you tear the wall down so I guess I'm at square One lol but thank you for replying
Why wouldn’t you adjust short pulse, minimum pulse, voltage scaling, etc?
Hey Kyle what has to be done (in the tune) to change gen 3 with built in reg and return. To return less (for TBSS intake)
Make sure the pressure vs flow scaling is in there as that is what will adjust flow rate for a returnless setup.
Have you ever used 16 stock injectors?
Is 3 lbs smaller okay without a tune
I have a E55 ME9,6 pcm and wanna change for bigger injectors, but it does not have a flow rate table, it has an injector constant value, which I googled, and kinda found the formula, but I don`t understand at which pressure it should be calculated, because the fuel pressure is changing constantly as I drive the car. Can You help with that?
I'll have to dig into that PCM and figure out more information on it.
1. Love your vids. 2. What about offsets, Min Pulse widths etc?
Exactly. And the transients etc ..Ive seen alot of tunes that they have only changed i thing flow rate...Short pulse adder needs to be adjusted also
Do you have a video showing how to copy and paste injector data from the data sheet to hptuners.
Find the graph that matches your ECM, then it's just copy and paste
Same with the previous video i commented on. How does multiplying by 1.05 equal multiplying by 5%
Math. Bring up your calculator. Multiply 1 by 1.05 and then 1 x .95.
what should I use for a 1.5 Malone tune? My spark plugs got black smoke on the head
Too rich, pull fuel, get a wideband, get it in the happy zone
The injectors part of if seems clear but the injectors don't represent the whole fuel system usually you will have to upgrade the fuel pump as well but no one makes videos about these either it don't need to be tuned or it's way too easy to make a video either way I want to learn how to do it .
I got my 60# injectors to work, ran rich but was good. I was making some changes and I think/ pretty sure i bricked the ecm. I get controller unlock time out.
Which ECM?
@@GoatRopeGarage e78
@@GoatRopeGarage i replaced my ecm already, just have to get vats to work properly
If I have a 2007 gen 3 5.3 non flex fuel, and if it has flex fuel injectors. Do I just find a 2007 gen 3 5.3 with flex fuel and change all injector data? Or do I also change ve, maf and timing? It’s a swap I did and motor was all mismatched and it idles rough just realized it has the flex fuel injectors. Please just a bit of help. Thanks! @ Goat Rope Garage
You need to find out if the injectors have different data, so a good place to start is a factory flex fuel version of your truck. VE and MAF shouldn't matter as long as your injector data is correct, but it never hurts to go ahead and dial in the airflow to make sure it is running it's best!
Ok thanks so much! The data comparison show different data for flex fuel and gas injectors, so ima go ahead and change it. Your videos are the best and have gained so much knowledge from them!
Good luck idling with twice the stock size injectors but not halving the min injector pulse width.
@Goat Rope Garage Hey Kyle, old video but what about min pulse width, and injector offset vs. Voltage???
Anytine you purchase aftermarket injectors they provide you with this.
In the event of not having this information, than what??
I thought about the same thing. For injectors to function correctly the voltage offset, min pulse, and short pulse adder information needs to be right. He over simplified this, and it’s going to confuse some people when their car won’t start anymore.
All most all bad injector data can be corrected with airflow tuning. Done it many times.
@@GoatRopeGarage you’re right, it can be tuned around, but the average person tuning their personal car would be better off with injector data.
@@Mattvardaman 1000% and they should take that into account when buying injectors
Does a bigger injector always have more psi than a smaller injector?
Less psi
How do I change firing order on my silver ado to old 18435572 to add a cam that's calibrated to that
Firing order is set by the ECM, as far as I know you can't change it
If I'm switching from 25# injectors to 50# will this keep me from washing out the rings
So long as you update the injector data you'll be good
Hey bud are FIC 1000 any good for small block Ford 351 turbo 800hp?????????
Should be good on gas, might run out of injector with E85
In my 2002 flex fuel stock tune with DB cable my inj pulse is flat 33 lbs across the kpa along with another non flex tune I’m using that has a flat flow chart of 25lbs. My avg inj pulse rate just cruising around is 6.1ms and it doesn’t want to learn a tune.
Any way to look at the data to see if your injectors are too big or small ? Injector size I’m running is unknown.
What's your calculated pulse width looking like?
don’t see that in the channel lust just have average pulse width for each bank. Upped the flow rate tables from a canned tune file from 25lbs to 27lbs with a curve and it knocked the avg pulse rate down to 4.1. Think the injectors are too small, going to put in some new 30lb injectors in it.
Now I got to figure out why my knock sensors just quit working,
Lol, it never ends.
@@Busa0069 there is math parameters on the default math section, think they need pulse width and rpm to do the calcs
@@GoatRopeGarage
Update
did the tuning school method of looking at inj duty cycle on the chart layout. Stock 5.3 Injectors were set way too fat at 28 lbs.
Installed 24-26lb injector curve with stock 25lb offsets and brought everything back in order.
Injector flow calculator says with 58lbs of fuel pressure 25lbs is plenty for sub 400hp build @ 90% duty cycle.
Thanks again
I just got some injectors. There Ford 47lbs at 39lbs fuel pressure. If a car say has 59lbs would that change the flow rate? Is there any math to do that?
Yes, and not really, but I would think the Ford ones have data out there somewhere on the internet
Can you send me a tune file for
long tube headers and bigger injectors 60 psi more power
For my 2004 dodge 1500 5.7
Hey Kyle, Ive added E85, to my 6.0l '09 G8 GT. I was told I should run 64lbs injector from my 42lbs stocks when I add the cam. Playing with the table I add the 1.05 but it flat lines at 63.5@ 58.0 delta psi, should I back it down so I have that linear line and let the map tuning adjust for the rest? I have the same set up as that 09 Vette in the video. thanks
That's the limit on injector size. You can correct in the map so long as you're not too far off or boosted
Why didn’t you include the injector offset?
o5 hemi with a turbo i need some help lol
When you changed the column axis to PSI why does it go up to 11.6 PSI if it is a naturally aspirated engine? Or is this not a stock 2005 GTO calibration? 3:57
Because atmospheric pressure is 14.7, until you exceed that you’re not making boost
@@GoatRopeGarage thank you for the reply it means a ton 🙏 I am one week in learning how to tune my own car thanks again!
What about Injector data?
How to hide nitrous kit
I don't know exactly what you are referring to, i do know there is a such thing as "VOLTAGE OFFSET" that no matter what you do, if you do not find the injector chart from the MFG you are using, that thing may never be absolutely perfect..
In the older OBD1 TPI stuff, it is under Inj Pulse Width correction vs battery voltage, meaning "HOW LONG" it take a injector to "OPEN" vs the battery voltage it is operating at.
It seems (EVERY MANUFACTURER) of fuel injectors have their own "VOLT OFFSETS" thus if the computer doesn't know there has been change or the offsets haven't been changed to match the new injector voltage offsets, the injectors may never work properly as they are designed to.
Is that what you are trying to offset for in this video?
Not really, when you look at how fuel is actually calculated it is all based on the airflow calculation value, regardless of the values inputted into your fuel injector tables at the end of the they act as a constant that is then referenced against the calculated airflow value, which we calibrate using the wideband. So you can go in and completely jack up the injector values (Within reason) and then change the input into the airflow calculation to produce the results you are trying to achieve, is it the most efficient way, no. Having good injector data makes it a lot easier but I have tuned some of the crappiest Chinese injectors with only knowing the advertised flow rate without issue.
@@GoatRopeGarage Oh yeah buddy!! OBD1 TPI has all those setting!! LOL.. Cmon.. The closer you get with every digit, the easier and better the tune is.
Think of it like this..
Your the computer, you have to take x+y to compute z, problem is you have done been told what x+y is, but they have been changed.
No way you can pinpoint what "z" will be unless all the info for X+Y is exact as it can be, not if you are shooting for exact z or close to it.
OBD 1 IS DUMB! Not a lot of room for all those cool stuff you OBD2 guys got.. Now we would (LOOOOOVE) a Holley HP etc that would bolt into place of our current TPI computers and OBD 1. Holley could make them, but they wont..
On 90-92 computers, we are stuck with strictly volumetric efficiencies and P.E for W.O.T. The name of the game is to get her to be at 14.73 "STIOCH" which is 128 on a scale of 108 pegged rich, to 160 pegged lean.. A setting in what is called "BLM BLOCK LEARN MEMORY"..
Now the real only choice for pre speed density is the 1989 MAF BIN.. It got rid of cold start injectors and has a more roust tune capability compared to earlier MAF versions. That BIN specifically the "ARAP BIN" which was in the vettes has the gsec setting for airflow, and unless you use the (ONLY) choice we have for aftermarket flow sensors the "GRANETELLI", you are stuck with factory which pegs out at 255 gmsec.
Again, you OBD 2 guys got it made. Compared to us, things like "INJECTOR OFFSET" which is delays in opening/closing time compared to battery voltage can mean the difference between a perfect 128 BLM or a rich 122 BLM etc. So it (DOES) make a critical difference if you want it as close as it can be.
Are they really twins or is it movie magic
Kyle what about gen 3 went from 33lbs to 142s and have extremely rich at idle then lean on accel havent moved the truck it stalls and dies
Start from idle and adjust out from there. Odd that it would be lean up top, should be rich across the board
@@GoatRopeGarage offsets are off i belive got the truck to start how can i figure for those wideband?
@@jorgesalinas8876 might be an uphill battle if the offsets are off, but you can tune some injector sizing errors often just by going through the standard tuning steps. Effectively we are correcting the error in the MAF or VE table. Having correct injector data from the students makes the process easier as we will have less correction to do in the tune, but when we don't have all the data the tune will correct the rest since we are using error math to accomplish our goals.
There is an actual calculation you could do if you knew all the values to see that on this point of the VE table, with this displacement, this injector rate, this engine efficiency we should have this AFR. Well we know the AFR so we can work back and adjust the VE table to make up for one of the values we don't have.
Thanks kyle youre the man
Seems like it’s pretty straightforward to tune without injector data, you basically only changed flow rate vs kpa. If it’s that simple then why do people on the “tuning pages” on Facebook say that eBay or cheap injectors are trash? As long as they work idk what brand they are.
Just got some today actually, for FREE, they are “mostplus” and manufacture number is M02A36, 36lb/hr. Got on Facebook today looking for info about they and EVERYONE that commented said to throw them away.
Is there a way to make them work? Can I do what you did in this video to make them work for me?
You can usually overcome bad data, but I would suggest trying to find data that is close from a set of injectors that flow at the same rate, the closer the injector data is the easier it is to dial it in through the fueling tables.
but what if I go from 28lb to 33
Will the 1.05 multiplier on a curve work for a e38 gen 4 that has a return less system ? Is that basically what your doing here.
For example say my stock 2010 Silverado has 30lb injectors but we have a set of flowed 81lb injectors . Do I just multiple the whole think till I get close too 81lbs where it previously was 30lbs
You not have the data for the new injectors? Can be hard on a returnless system without the actual injector data
I need big fat injectors
You didn't touch on the issue with many ECUs limiting that injector table to 61lb/hr. Early e38 and 40s are an issue with this. If you are going big injectors like 95lb you have to scale them differently. Btw, love the channel and I get a lot out of it. Thanks
Ill do a video soon on that
I am in the same boat with adding 150lb injectors on my e40 PCM. Looking forward to that video. Great work! Thank you for all of the hard working making these videos!
@@GoatRopeGarage did we miss that video? or has it yet to come out? still trying to figure out how to scale large injectors on these old PCMs. cant simply scale voltage.
@@andrewgreaves2687 haven't seen it yet.
@@g8noobie4door16 that's a bummer....I'm almost at the point of changing PCMs or going the holley route just due to the ease of tuning.
I need help
Who thumbs down this?
I been watching all ur videos 4 ab0ut 2 months n0w I am juz starting to learn h0w to tune my car I work at a repair sh0p I do kustom auto body N mechanic work I ant N0 lapt0p at all is their away I cAn private e mail u with 0ut all the U TUBE BS I live on long island n my car I am trying 2 build is a 2004 monte carlo 3.8 supercharged v6 the L67 motor I have a few things from zzp