Tuning How-To: Tuning Main Fuel Table (Hondata s300)

Here's a full-length tutorial on how to tune the main fuel table using the Hondata s300 system. We explore both open and closed-loop tuning methods and focus on utilizing the lambda overlay feature to quickly and precisely tune our main fuel table.
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[@dogmoo]

Jeff do you have trouble traveling for tuning? I just imagine they have issue with you bringing guns on board the plane. Jeff doesn't measure lambda offset and recalculate for stoich. He just flex's at the ve table until it reads 12's under boost. Jeff doesn't lift weights he just goes to the gym with a laptop until the weights lift themselves and he gets bigger. :-D sorry couldn't help myself love the channel. I never miss an upload.

[@dohc22h]

When Jeff isn't Tuning.... He's fighting in the UFC

[@Mazshi]

@@blakeblood9196it was a joke about his form 💀

[@enhancedphysique6452]

Right coliflower 🎉 ears for weeks! Don't beat me up Jeff I give ....

[@Yonelll_Kim]

This video was extremely helpful, looking forward to more lessons.

[@Iyoten01]

I've been looking forward to these tutorials on your tuning methods.

[@tommyv4980]

You're basically the organic chemistry tutor of the car world, nice vid man!

[@DelFam2011]

I just bought the all access deal and it is fantastic. I already knew quite a bit of the beginner course but the advanced section is some good meat and potatoes.

[@EvansTuning]

Glad you are enjoying the content and happy to hear you’re learning from it. Don’t hesitate to ask any questions on the subscribers-only forum!

[@louisw903]

thx from fanboy in Germany ! We have a big honda Community.

[@Boostlee]

i needed this, thank you Evans

[@CS1Mellymel]

Man this video Was Extremely HELPFUL THANK YOU

[@jessefranke1718]

Thanks alot for this tutorial, great info!! Just one word of advice, you ran through the closed loop settings fairly quick without explaining what you exactly did there, and why you changed the settings.

[@preludedudesi5208]

Awesome video, need to apply what you taught on setting up the wideband to mine think that might be why it works sometimes and sometimes it doesn't

[@dylanschomer6301]

This helped a lot crazy how I was trying to tune before I knew about this

[@2ice715]

props! thank you evan!

[@hyrumbeck2739]

Amazing vid thanks bro

[@rogermorales134]

GREAT info !

[@DougsAdventure]

Thanks for this.. similar to hpt

[@syrthdr09sybr34]

Very helpful, thanks.

[@AKBAN1_AUTOCULT]

Is it important to connect wide band O2 sensor to HONDATA to calibrate with open loop?

[@javiercontreras9048]

Hi Jeff, are you planning on doing a similar tutorial for the ECMlink? and haltech Platinum PnP? will be interested in those as well.

[@poke191919]

This video was very informational and specific I’m signing up for the classes now the only question that I have is how do you wire in the a.m. series wideband to the ECU itself??

[@10DKB]

Miss your channel

[@phantom2488]

Do one on the infinity I'm having trouble with vtec table on my s2000

[@Romee_rome]

Hope all is well with you Jeff.

[@jkillah4208]

Any chance you could show some tuning tips with the kpro hondata and cam gear on a boosted d series ( preferably the d17 )

[@TPSYKRT]

So basically try to get a target afr in closed loop under -2.5 map pressure for idle/drivability and then open loop under positive pressure and try to target 11.5 afr or depending on boost/na etc.?

[@AtanasDimitrov954RR]

thanks for awesome videos, very helpful. in this video low speed table you are showing settings/value for a boost engine. i can apply this for a NA v6 engine J37? im using Ktuner and i have similar setup . except my table is LOAD to RPM. Do I want lambda 1 or close to 14.7 in low rev range and lower value in higher range like 13.5 and top end 12.1?

[@BulliKid]

Quick question so when someone is tuning a car is it best to tune both open loop and close loop? Also I get the concept for increasing fuel with boost and what not but how is timing affected with boost?

[@derrickdesrochers5424]

How about a video on how to change injector to 240 to bigger injector and set dead time

[@BigJnWorldWide]

Will you ever have classes using Neptune RTP? I know it's pretty similar to Hondata but I'm sure there are screens and tables that one would have over the other.

[@v8consumption]

Greta video

[@luster4783]

I’ve been looking for an answer My distributor keeps going out I found a plug wire had a rip Would that be the problem Thank you

[@TiMmY42O]

How did you get your vacuum columns like that? Mine seem to backwards. -3.8 in column 1 and -29.1 in column 9.

[@guydevries8197]

I have wiseco pistons (K673M81AP) think its ment to be 8.5 will it still run ok using a standard b18b1 basemap for first start and break in? what are the main things i should change in smanager for the lower compression ratio? And for boost

[@BulliKid]

When I did a WOT pull and try to adjust the fuel map the lambda overlay is on low fuel map not the high fuel map??

[@miraclelifeofling_1121]

one question. what would my afr ratio look like? im running e85. but i got the wideband set up with lambda target. should it run 9.7 stoich till?

[@DanielTheNerd]

Does this open loop wideband tuning also apply to Alpha-N tuning?

[@matthewglaze5398]

How did you add so many gauges / sensors to your display page and they all show as digital?

[@righty-tightybuilt548]

I'm having trouble, when I adjust the tables to what the target AFR is from what it was reading, my fuel graph seems to cross into each other.. am I suppose to smooth or interpolate it some how?

[@JA-xv8qk]

Im running nismotronic and ive been trying to figure out how to tune, I have a guy to help but he is not near me. The truck runs pretty food but it is running rich on idle.

[@eastcoastrifraf]

Do you have to write changes for these to apply? Or is it real time?

[@joshuatorres4762]

Hi Evan I wanted to know if I needed to swap out my obd2 distributor for a obd1 distributor w/ rywire harness . Going turbo and using P72 ecu hondata s300 already installed? Please let me know thank you in advance

[@elb3yacoo]

Jeff where can I get css block work in nj

[@phantom2488]

You should make DVDs too and sell them I'm specifically looking to learn the aem infinity on my s2000

[@EvansPerformanceAcademy]

We have a 20+ hour Infinity training course available here: www.evansperformanceacademy.vhx.tv

[@preludedudesi5208]

Are you still doing the tuning schooling?

[@mikemelina7395]

This video is a year old,, are you still in Mt. Bethel and do you tune on Dodge. I'm up the road and I have a Dakota 4.7L I'm looking to tune.

[@gabechomein7855]

Is the flashpro the same platform as the s300?

[@itskobe8673]

Hello, can you tune a ford bronco sport

[@theonlyonegrimey]

U guys tune with ktuner ? By chance

[@andresvelasquez4623]

Jeff, can you please make a video on the simulator and where to buy it, I would love to be able to practice on a simulator to get the hang of it.

[@EvansPerformanceAcademy]

I made the simulator at the shop, its not something you can purchase.

[@8300rpmallday]

So I installed a lighter flywheel on my car 8thgen civic Si, my buddy with a tsx said his car when he change the clutch he put a lighter flywheel and his car went to limp mode and had to go to his tuner to disable something we don’t know what that something is and I’m trying to make sure this don’t happen to my car

[@MultiDislikes]

I just finished my new h23 vtec biuld and I can't seem to get my smanager v300 to populate the tables it only shows me 500 coluom one....(the first box) I have checked all my settings and still nothing I did it the first day I was tuning could this be a software problem?

[@justintracy1374]

IN TARGET LAMBDA HOW DO YOU KNOW WHAT TO SET THE ENGINE LOAD INCHES TO??

[@joshmoline3802]

What is he using to simulate a motor? thanks

[@salvatorehayes2753]

So You Can Not Spot Cell Adjust The AFR Error Cells All At Once For Adjusting The VE Table Like HP Tuners. If You Wanted To Do This You Would Have To Do One Cell At A Time?

[@b.r.8451]

What happened to the J series acura?

[@tedphimsiprasom4042]

Where are you located? Im interested in having you tune my build

[@righty-tightybuilt548]

What are the values set at on the fuel table?? I see 4 to 5 digit numbers.. how come it doesn't show it in air fuel ratios or lambda values??

[@righty-tightybuilt548]

Do you need to tune the car on close loop and open loop... im confused.. I thought closed loop is for idle and light load and open loop is for wide open throttle? Tuning the car say in open loop, and adjusting the fuel table at low rpms and idle in open loop, would that change not take effect unless you tune the car on closed loop when wanting to tune the lower rpm range and cruise speeds? And after doing this method say the lambda overlay in open loop, and you adjusted the tables to where you wanted them, would you just leave it as it is? When ready to drive and use the car for daily driving.. or do you enable closed loop after your done tuning your open loop?

[@jodymelvin2019]

Question im using the s300 and i recently reformated my laptop when i re installed smanager my fuel tables vacume graph is backwards now an i dont know why. For exanple ( my vaxume number start in a more positive vacume then more negetive into the boost tables why is this its really confusing and id like to understand how to fix it.

[@cheflos524]

Will this work on 9th gen si?

[@kaderaqq1350]

I just put a basemap on my civic and I’m running extremely lean almost 30:1 I don’t know how to add more gas

[@righty-tightybuilt548]

I'm definitely going to buy the full class course. I need to learn how to tune my own car asap, as there are no tuners where I live and build engines is a huge passion and hobby of mine. Please let me know the pricing on the full course class where I can have all the information at my own use and is there any live features of training or a live chat where I can shoot any questions or problems I might have?? Thanks in advance.

[@EvansPerformanceAcademy]

The s300 master training course is $350.00 and can be purchased here: evansperformanceacademy.vhx.tv/products/hondata-s300-master-training-course There is a private support forum to ask questions with the school as well as ability to ask question directly on the tutorial videos.

[@righty-tightybuilt548]

@@EvansPerformanceAcademy awesome as soon as I get my check this coming week im going to for sure purchase the class. I really hope I can understand and learn the program well enough just to get my car running.. its a naturally aspirated f22a head f23a block and I want to put k20a2 pistons on it and I have on my previous set up but the engine was destroyed after not but a week or so.. due to to much compression and 91 octane with no tune or fuel management.. all stock ecu and injectors. I hope this class will be.. how you say dummy friendly.. well not to much terms I wouldn't understand.. basically a thorough run down and what everything means when discussing a certain thing.. thats my main problem is trying to understand basically everything that will be taught since I'm new to the ecu tuning world.. but im sure it will be great and work out.

[@Mishakol1290]

My question is why did you just sweep across the columns and then add the majority number of what needed to be changed aren't you supposed to add or subsract the numbers individually? Seems a lot faster and easier but that's the way I did it

[@mrcaffein]

I would think the same thing, changing them individually would give a more accurate number in each box. For example if one is 15.5:1 and you need to add 3% and the other cell a few columns over was 14.7:1 already and you add 3% now you've corrected the 15.5:1, but the other is now at 14.0:1? Seems changing each cell individually would be best, but obviously is slower. It may help to "get it in the ballpark" to just do a wide range update, but then go back and fine tune any outliers.

[@pigeonsil240sx]

cant get tables to populate ny numbers doing open loop method? just empty squares.

[@360rocketz]

How do i get the a/f ratio to appear in open loop, from my understanding it gets the a/f ratio from the o2 sensor voltage, but if i go into open loop its ignoring the o2 sensor, meaning i cant get my a/f ratios. Did you wire up an a/f gauge to your ecu or something like that?

[@IvanLopez-bz7xi]

Yes you wired the wideband to the ecu

[@minibikemadman]

Where has Jeff been? Still around?

[@bhadz100]

This is much better than HPA’s

[@all4bspinnin311]

Jeff, it looks like you could set it up to run full time closed loop. Any drawbacks vs open loop?

[@EvansPerformanceAcademy]

Yes, it cannot feedback fast enough at high rpm. Using something like Holley EFI, Motec, FAST XFI, AEM Infinity, Link, etc they all have the ability to properly define the update rate at high rpm and provide fast enough closed loop correction. The s300 can do it, its just slow to respond and not super accurate.

[@all4bspinnin311]

Good to know. Thank you for the information and reply.

[@rogermorales134]

if i dont have my wideband soldered to my ecu what option would i calibrate on ?

[@bertsbug5757]

You will be tuning blind

[@kanhaiwilson5859]

i have a 97 honda accord lx ob2 can u chip a ob2 or should i just go obd1

[@bertsbug5757]

Obd1 I believe

[@freddygeez4646]

so would the same basics apply to kmanager just more tables cause vtc ?

[@MrDelsoleg11]

Yes

[@EvansTuning]

It’s a similar idea, but there’s a very specific way the fuel, ignition, and cam angles have to be tuned together. We do cover that method in depth in the Kpro specific training course.

[@seekerofgrace1247]

@ Evans tuning how much is your EFI tuning course

[@EvansPerformanceAcademy]

Its $49.99 a month with no minimum time to subscribe or hidden fees. You gain access to 400+ hours of training material currently with more added each week. www.evansperformanceacademy.vhx.tv

[@dresdensvo]

When your school subscription runs out do I lose all training info ?

[@EvansPerformanceAcademy]

You have access to all content as long as you are subscribing.

[@nanerpussz]

Jeffs arms are fucken huge

[@537R4HC]

where can i get a simulator? im learning

[@TrentSzopinski]

i dont even know what it is, im so intrigued now

[@AutoJustice]

Why havnt u posted in a year

[@Everydayprojects365]

On the closed loop,what if you don’t have a wide ban o2? Could you still use this method??

[@sil-zk8061]

Stock ECU's run closed loop without a wideband. There's no reason to even bother with tuning until you get a wideband as you won't be able to monitor your A/F ratio

[@Everydayprojects365]

I’m running a p28 with hondata s300 “no wide band yet” but fully built internals and fuel system cp pistons,eagle rods,bc everything in the head,310 rc injectors and it’s rich super rich and fuel adjustments don’t seem to work? Do I definitely need a wide ban o2?

[@yenyen33089]

do you also tune ecmlink?

[@EvansPerformanceAcademy]

We offer a full ECM Link training course available here: evansperformanceacademy.vhx.tv/ecm-link-training-course

[@dhwin5709]

Is this similar steps involved for flashpro vs s300?

[@EvansPerformanceAcademy]

Its a similar process with Flashpro; however it is a bit more complicated depending on what engine you are tuning with Flashpro. The K series engines have many more tables to tune, which adds complexity. We are starting our Flashpro training course this coming weekend.

[@dhwin5709]

@@EvansPerformanceAcademy I would like to learn how to use flashpro to tune my f series s2k. I'm running "tuned" basemap and would love to learn the basics on how to tune.

[@rickosuave7705]

Good stuff jeff.. very helpful..thanks ..

[@righty-tightybuilt548]

I am going to be getting a s300 and there are no local tuners near me.. hoe can I learn to tune with hondata.. and get to know the program well enough to get my car started if I say upgrade the injectors or something that requires a base map mod?? Please help?

[@EvansPerformanceAcademy]

We have a great s300 specific training course that will teach you how to tune your car with the s300 available here: evansperformanceacademy.vhx.tv

[@righty-tightybuilt548]

@@EvansPerformanceAcademy yeah , but I noticed it cost almost 5-700 dollars.. and I don't know if I'll get a full training course from start of running and turning on the program, and how to hook up the data logging cables and what not.. im one of those dummies.. and I would need a full training course. But not something where I would have to navigate and source out certain information.. if I wanted to tune my car, I have all the data logging cables hooked up and what not.. and I'm running a higher compression with stock injectors stock fuel pump, I would go into the map table and adjust the fuel trim and try to level it out to get a good air fuel ratio thats about all I know if thats even correct.. 😆 but then I see and hear about part throttle tunning and full throttle tunning.. would a safc or vafc piggy back be easier to tune with? Or would it help me learn the basics of tuning?

[@righty-tightybuilt548]

@@EvansPerformanceAcademy or would i have to pay annually??? Does it take more than a few years to learn the basics of tuning or how much would the whole class cost? I'm confused on the monthly payment or annual payment option..

[@EvansPerformanceAcademy]

@@righty-tightybuilt548 You have monthly or yearly options. You can get purchase a month at a time in a "gift" option. The subscription only gives you access for that period of time you are subscribed. The course purchase option gives you lifetime access to the specific course you purchase.

[@righty-tightybuilt548]

@@EvansPerformanceAcademy how much is the course purchase option?

[@AutoJustice]

Seems like everyones tuning tutorials end right after fuel tables

[@kristianmagee9976]

how do you run a simulation in hondata?

[@BoostedNW]

with an engine simulator

[@KruBurK1]

Where Evan?

[@hondaprelude8000]

Do you still do classes?

[@EvansPerformanceAcademy]

Yes, its all done online here: evansperformanceacademy.vhx.tv

[@hondaprelude8000]

@@EvansPerformanceAcademy bout to sign up

[@hondaprelude8000]

@@EvansPerformanceAcademy just subscribed is there any h series videos?

[@texas421ah]

How do I join

[@EvansPerformanceAcademy]

You can join here: evansperformanceacademy.vhx.tv/

[@racingcartracking3387]

no more video tuning..?

[@EvansPerformanceAcademy]

www.evansperformanceacademy.vhx.tv

[@alderalvarenga145]

💪🏻 top, you got a Instagram

[@zongyang4707]

I dont have the balls to mess with this..Ill just pay a good tuner..LOL

[@aragrox]

I got lost early on

[@tylerhamling9965]

contact info?? message me on fb tyler Hamling thanks buddy hope to hear from ya soon

[@jimhiscott2918]

The hondata s300v3 gas been a great little unit fir many years however I don't recommend using them anymore. As if 2019 you have to be online to tune your car with hondara. This is so Father (The Government?) can drop in at anytime to see what EPA laws you are breaking. Stay away from Hondata. Also ar the endvif the day you still stuck using 25 year-m old obd1 technology. This is why Hondata isn't very reliable. There are far better choices on today's market. I suggest you take a long hard look at Fueltec.

[@enhancedphysique6452]

"Oh ya k24z7 has no VTEC on exhaust cam k20a better" 🎉😂 one word .... Higher comp also TORQUE! K20A GOT TO REV To 6k before it can ever catch a mini van,both taking of at the light. Sounds nice a 8-8500 but it's inferior. BUT you wanna be the boss hog you take K20a head. No a2. JDM k20a. Same thing a pure K24a JDM get out pump an all the goodies now that's a high rev pinnacle of Honda... On the streets watching it take off YOU KNOW that thing is breathing an screaming, you can here it if your a grease monkey. No different than the old lady at the top of the rev range. Life is great😂😂😂🎉

[@heavydutyroadsidellc920]

such a scam...next time mention if you run an engine lean you increase nox emissions. in the balpark of 16-1 afr target on pump gas. that is why they don't tune them to do this. 80s cars do what is called lean cruiz at the 16-1 afr