Kia/Genesis BMS CPI & Flex Fuel Kit

[D-Rail_Trail]

That's the injector. Yes it's normal. Mine does the same thing.

Thanks!
I have another question. Since installing the CPI kit with FSB, I've noticed a sound on starting the car, normally or in accessory mode, during the system check. It's like a burst of three mechanical buzzing noises is the best way I can describe it (if listening in the engine bay). It's audible in the cabin, but sounds more like a light thumping sound, and can be lightly felt in the steering wheel.

Poking my head in the engine bay, it sounds like it's coming from the general fuel pump area where the flex fuel sensor and fuel line tee are installed. With the FSB cover off, I see the board LED lights up in the same burst pattern and is synchronized with the sound.

I have not yet noticed anything out of the ordinary beyond this, so my best guesses so far have been that it's a byproduct of the teed fuel line, similar to a water hammer or other resonance when the pump turns on, expected behavior from the FSB and injector, or that it's entirely coincidental and unrelated to the CPI kit and fueling in general. Maybe it has always been there, to some degree, and I only now noticed it due to post-mod hypersensitivity.

Either way, does this seem normal? I can try to get a short video if this seems unfamiliar.


Thanks for clarifying the meth scaling setting. I've adjusted that and see the change in data now in some short logs. I will try to get logs on longer runs soon.


I still have not seen any signs of leaking with the injector or holder since I last posted, but I am still keeping a close eye on it. Looking at other pictures in the thread, the holder looks the same as the one I received and installed. So far, it really seems like I somehow managed to mess up my first attempt at install is all.

[bigdingus]

That's the injector. Yes it's normal. Mine does the same thing.

Thank you for the quick confirmation!

[bigsteve0279]

Hope this is not a dumb question: Is the CPI running all the time just like a normal injector is in the engine since you are running higher ethanol above E30?

I thought I read that it only comes on above 9 Pounds of boost that is set up in the settings. If that's correct, What happens when you are under that set boost? Won't the HPFP crash if running like E50 at a lower boost? Or is the Only time the HPFP will crash when running higher E85 amounts is when under 100% throttle.

[Terry @ BMS]

CPI is only injected when needed, under higher boost situations, where fuel pressure can't be maintained otherwise.

[AWDGT2]

I'm about to install my CPI in-lieu of WMI. The kit came with two additional black O rings. Can someone tell me if these are needed, or are they spares for the colored ones on the injector?
History....
I've had the flex fuel sensor on the car for a while so this is just the other half of the kit...

[MacGyver]

I'm about to install my CPI in-lieu of WMI. The kit came with two additional black O rings. Can someone tell me if these are needed, or are they spares for the colored ones on the injector?
History....
I've had the flex fuel sensor on the car for a while so this is just the other half of the kit...

I had the same question with mine. I was told they were extras

[Terry @ BMS]

The thicker orings should be installed on the injectors for the Stinger CPI application. The ones on the injector are thinner and may leak.

[AWDGT2]

I thought I would share this, hopefully it can make someone's life a bit easier. It's an excel sheet that will auto calculate how many gallons per, to get the E content you are shooting for. It's set up for E85, but you can simply change that value on top and it will auto re-calculate all the fields below. It can be printed and kept in the console for quick reference.
It's work in progress, but the other tab will calculate what your total Octane rating will be by the amount of E you have. Once I fine tune it, I'll upload the full Excel sheet.

Darrin S.
2019 AWD GT2, Sxth ECU/TCU, JB4, Meth, CPI, MBRP, HFC's, Agency intakes, Agency FMIC, HKS Plugs 10.96 @ 124 mph

[Terry @ BMS]

I think the Fuel-IT app has a similar calculator/table inside it?

[AWDGT2]

Yes, similar but it lacks one thing, it's coded for just E85, and from a recent real-world test, My Sheetz tested at E65 so this will adjust. This is mainly for the folks without the sensor also who have a hard time guessing how many gals per to mix.
Maybe Fuel-IT can make a revision to the app so the E-content can be set to real world pump contents?

[Terry @ BMS]

Interesting... Nice worksheet regardless. I'll ask Fuel-IT to include a similar change for future versions.

*** EDIT *** They replied it's already in the latest version of the universal app.

[AWDGT2]

Oh nice! I'll have to download it. Thanks!

****Edit**** They haven't posted up in the play store yet but I'll keep my eye out.

[ANDEN10]

I can confirm that the app does not currently have the set pump E85 content adjuster as seen in your picture.

[904_stinger]

Which part of the firmware is being used for the cpi? Beta still or stable?

[Baluchitherium4]

In the installation instructions, the fuel it kit shows the power connection using the 10mm bolt in the fuse box. The cpi instructions suggests using this same connection but the picture shows the connection going into a fuse location but suggests using the same spot as the fuel it kit.

Which is correct? Do you use the 10mm bolt like the fuel it kit or do you need to use an empty fuse location?

[Terry @ BMS]

In the installation instructions, the fuel it kit shows the power connection using the 10mm bolt in the fuse box. The cpi instructions suggests using this same connection but the picture shows the connection going into a fuse location but suggests using the same spot as the fuel it kit.

Which is correct? Do you use the 10mm bolt like the fuel it kit or do you need to use an empty fuse location?

I'm glad you asked. We suggest the FSB and flex fuel sensor NOT be installed on constant power as the flex fuel guide shows, and instead be on switched power like the CPI/FSB guide. I'll get with Fuel-IT to update their guide.

We've had a couple customers report they could not connect to the JB4 with the flex fuel sensor attached and I suspect that is why. If you can't connect and have a flex fuel connector disconnecting it's power is a quick test to see if that is related.

[Terry @ BMS]

Found another programming bug that could cause CPI not to work properly on map0 or map8 and fixed it in v27 firmware.

[Terry @ BMS]

New default CPI fuel volume settings we're testing...

[Andy B]

Are these settings more for drivability or performance?

[Terry @ BMS]

They are just starting points based on collected customer data.

[khancerto]

I think this was asked before but not sure if it was ever answered. Saw somewhere that with just the Fuel-It kit, there was a map we could use that would adjust boost based on ethanol levels. Was that in conjunction with the CPI kit? Is that referring to Map 7? Or is there another map?

[AWDGT2]

I think this was asked before but not sure if it was ever answered. Saw somewhere that with just the Fuel-It kit, there was a map we could use that would adjust boost based on ethanol levels. Was that in conjunction with the CPI kit? Is that referring to Map 7? Or is there another map?

Not there yet. That's Terry's end state, but Map6/Map7 is the closest thing right now. What you're referring to is dynamically adjusting boost and several other factors like timing, AFR or Lambda which requires direct access to the ECU and almost flashing it on the move. Very difficult to do.

[khancerto]

Not there yet. That's Terry's end state, but Map6/Map7 is the closest thing right now. What you're referring to is dynamically adjusting boost and several other factors like timing, AFR or Lambda which requires direct access to the ECU and almost flashing it on the move. Very difficult to do.

So I can just us Map 7 with the fuel it kit as long as I'm running E30? What settings for Map 6 would be similar?

[AWDGT2]

No that's not what I'm saying. Map6/7 are similar in the ability to adjust boost manually. Running E30 really doesn't qualify for anything that custom. Run a log in Map2 then 3 and have someone analyze it. More than likely 3 will be a perfect fit.

[Terry @ BMS]

I think this was asked before but not sure if it was ever answered. Saw somewhere that with just the Fuel-It kit, there was a map we could use that would adjust boost based on ethanol levels. Was that in conjunction with the CPI kit? Is that referring to Map 7? Or is there another map?

Map7 can do this now. Just turn on WMI bit4 "scale PI on flex fuel". This tells the JB4 to dynamically adjust the boost, air/fuel, and CPI volume based on your ethanol mixture. You can further refine it with the boost additive setting. A higher setting lets the JB4 add more boost/leaner AFR with stronger mixtures.

[khancerto]

Map7 can do this now. Just turn on WMI bit4 "scale PI on flex fuel". This tells the JB4 to dynamically adjust the boost, air/fuel, and CPI volume based on your ethanol mixture. You can further refine it with the boost additive setting. A higher setting lets the JB4 add more boost/leaner AFR with stronger mixtures.

So this setting works even though I don't have CPI yet?

[Terry @ BMS]

So this setting works even though I don't have CPI yet?

It can be used with just the flex fuel sensor but you'll want to lower the additive down as otherwise JB4 may add more boost than your fuel system can support.

[khancerto]

It can be used with just the flex fuel sensor but you'll want to lower the additive down as otherwise JB4 may add more boost than your fuel system can support.

Ok so what setting do I alter for that?

[Terry @ BMS]

Ok so what setting do I alter for that?

Scaling determines the boost levels relative to E85 mixture when option 4 is on for dynamic E85 scaling.

[CPALyfe]

Question - I am leaning toward CPI (vs WMI) for safety considerations (I travel with kids often), but am not that close to an E85 station. Is there anything unsafe to the engine about driving around with CPI on 93 octane. Is there any benefit without E85? I can fill up with E85 at a station about 15 minutes away, but figure I would just add E85 if I was going to the strip or wanted to blow off some steam.

Next question, Im considering some ECU tuning options. Can the BMS CPI kit run run off a JB4, while you are running a different/full ECU tune (Tork or LAP3)?

[QCStinger]

I was wondering if the cold side of the Mishimoto intercooler was thick enough to drill/tap for the CPI injector?

[ImStung2]

Questions for anyone. Terry @ BMS

i am installing cpi and full kit and I am wondering what did you guys use for the power source for the fsb? Which fuse spot ? Also what spot did you use for the e85 reader which has the round clip for the power source. How do I check on the JB4 the e85 content or do you need a separate fuel or app? How do you know if there is power to the sensor and jsb? Sorry for alll the questions

[SparkyWrench]

Question - I am leaning toward CPI (vs WMI) for safety considerations (I travel with kids often), but am not that close to an E85 station. Is there anything unsafe to the engine about driving around with CPI on 93 octane. Is there any benefit without E85? I can fill up with E85 at a station about 15 minutes away, but figure I would just add E85 if I was going to the strip or wanted to blow off some steam.

Next question, Im considering some ECU tuning options. Can the BMS CPI kit run run off a JB4, while you are running a different/full ECU tune (Tork or LAP3)?

Terry @ BMS

I'm also curious about this. If i were to do the Fuel it and CPI, and don't want to run e85 all the time, can it be turned off and run 93?

[Terry @ BMS]

Questions for anyone. Terry @ BMS

i am installing cpi and full kit and I am wondering what did you guys use for the power source for the fsb? Which fuse spot ? Also what spot did you use for the e85 reader which has the round clip for the power source. How do I check on the JB4 the e85 content or do you need a separate fuel or app? How do you know if there is power to the sensor and jsb? Sorry for alll the questions

Both need to be on switched power and can use the same source. Fuses can vary a bit by vehicle depending on what factory options are installed. One way to know if there is power at a fuse spot is using a volt meter. Another is opening the FSB to see if the LED is flashing with the ignition on, and confirming its not flashing after car goes to sleep.

[Terry @ BMS]

Terry @ BMS

I'm also curious about this. If i were to do the Fuel it and CPI, and don't want to run e85 all the time, can it be turned off and run 93?

Yes of course, turn on option 4 on WMI page and the JB4 will adjust CPI flow (and boost if using map7) based off the flex fuel sensor reading.

[MNStinger]

I have a couple questions for Terry @ BMS or anyone who can answer...thanks in advance.

What is setting Bit3: DTML WMI Input and should it be enabled if I have CPI? I don't see that in any of the setup posts about CPI and for some reason mine is enabled. I do not and never have had WMI, just CPI.

When looking at the logs, what specifically tells me that my CPI is functioning properly? Is there something similar to meth_flow?

[lsimons3]

Hello Terry @ BMS

I have a similar question as MNStinger. I just installed the CPI Kit. The FSB Controller is flashing green, however it is installed on constant power. I don't know how/where to run switched power? Images below:



I also uploaded logs for Maps 3, 5, & 7. P21_M5_R5_230518_1241.csv

When I open the logs in excel I can see meth on column Q. It has a value of 1 until WOT on row 30 where it then jumps to 59. I believe this means the CPI/FSB is working correctly. Please confirm if I am reading this correctly and if everything else looks okay.

Thank you for your time!
Lukas

[Terry @ BMS]

All accessories including FSB, flex fuel, etc, should be on switched power via a fuse location and NOT on the constant power post.

[Terry @ BMS]

I have a couple questions for Terry @ BMS or anyone who can answer...thanks in advance.

What is setting Bit3: DTML WMI Input and should it be enabled if I have CPI? I don't see that in any of the setup posts about CPI and for some reason mine is enabled. I do not and never have had WMI, just CPI.

When looking at the logs, what specifically tells me that my CPI is functioning properly? Is there something similar to meth_flow?

It's not used for this platform so you can turn it off.

Meth flow is the CPI indicator.