ALL ISSUES FOUND (Initial Installs, in no particular order) For below (FRS= Fixed during remote session, Firmware = meaning the new update they had to open ECU)
- Rough idle (FRS & Firmare)
- Stalling (FRS & Firmware)
- Not starting (ECU learned and started, FRS helped this too)
- Clutch pedal not recognized (FRS & Firmware, only 1 member on this)
- Clutch smell (FRS)
- Limb mode (FRS & Firmware for some)
- Multiple dash lights for 1 member (FRS helped but new firmware main issue)
- Rpm drop when on throttle from a standstill, causing issues with stalling and poor driving off the line. (FRS & Firmware)
- "Launch Mode" popping up on dash when clutch in and hitting throttle (this is their launch control but only on automatic at the time, more on that later) this happened at standstill and in motion. (FRS)
- Standstill RPM showing 5k max redline, as you start to move it jumps up to 6,800 or 7k (7,200 only shows 7k max, they are still working on getting this to show the full 7,200 but they advised this before purchasing) (FRS) its a customer preference, so mine shows 7k at standstill now.
- PDC (park distance control) Activated during driving, would happen at the top of redline mainly in 2nd and 3rd and would scare you bc its loud and fast beeping! (new firmware fixed)
- Those with the 7200 tune had 6800 on 1st gear but it showed 7k redline, so we were hitting the hard limiter and when shifting to 2nd would be limb low power for couple seconds before picking back up. (FRS)
- Fuel pump priming after shut off and door closed, was going on a loop. This was the Bluetooth module as it was causing the ECU to turn on and off. Unplugged this and it stopped, we figured this out during remote session. Bluetooth an issue with Syvecs and they are refunding the money for those that got and new better one coming out Jan 2025 with GPS and F1 like traction control. (more to come on this will see)
- After shutting off engine, car would still run and not shut off for few minutes. (FRS but new firmware needed) This is random and only happen to a few of us just 1 or 2 times
- Ac not working properly (Firmware)
- Overruns gone for some (Still working on this, they added some to mine but will make 3-4 maps for this for me to test and then will be able to give to others)
- Gas milage incorrect (showing lower than what you actually have left to go) (Firmware)
- When shifting slower from gear to gear it will show other numbers, example going from 2nd to 3rd it might show 4,5 or 6 before going to 3rd. Only on slow shifts while in N. (Firmware)
- Hill hold not working (Firmware)
- Auto parking brake release (Firmware)
- Cruise control + buttons not working (Firmware)
- Miltek OEM controller button backwards, was closed in track and open in Tour & sport. So it was flipped not a big issue as I leave it open 99% of the time but nice to have that back which it is fixed. (Firmware)
I think that is the majority of the issues and hopefully have painted a good picture of all that has transpired during this first phase.
JUBU in person Visit
They have coordinated in person visits for 4 of the 6 members, 2 will send theirs to them in Austria and will update and send back, they will be covering the costs. They made the first visit to Boston to meet one of the members who had a phenomenal experience. See below.
"I just had the pleasure of having Martin and Rene spend some quality time on my car. Let me start off by saying that these guys flew into Boston from Austria (a 9+ hour flight) and met up with me on a Sunday afternoon to work around some challenging logistical constraints on my end. I offered to pick them up from their hotel and drove them to my place, which is about an hour away.
Once we arrived, they quickly began working. I had the Syvecs ECU on hand and OEM ECU installed in the Emira. Rene opened up the Syvecs ECU to expose a hidden USB port, which he then used to flash a new firmware. Martin and Rene replaced and updated the anti-tamper stickers and labeling accordingly. Rene performed some initial diagnostics with the OEM ECU in place, which came back clean, and he also checked to see if there were any software updates necessary from Lotus.
Side note: I was told that Syvecs has another update coming targeting November / December addressing what should be the remaining issues, but JUBU believes that January seems more realistic. The good news is that with the new firmware they will be installing this week, we should be able to perform future updates ourselves. (Yay!)
Over the past few days, I made it my mission to try and sort out just how the heck people can swap out the ECU from the engine bay. It took me around 3-ish
HOURS to do the "10-minute" ECU swap. Granted, I needed to find the right tools, sockets, extensions, and work around the Eventuri intake, which I thought made things harder. I even loosened up the intake to try and make room to squeeze my arms through and around to reach those 3 deceiving nuts that just refused to cooperate. So, when it was time to swap in the Syvecs ECU back in, I challenged Rene to do the swap in under 10 minutes. I timed the whole thing. This magician was in and out in less than 2 minutes and 49 seconds!!!! That's removing the OEM ECU, swapping in the Syvecs, and popping out of the boot. By the way, the key to doing the swap is to jump inside the trunk / boot, remove the plastic trim on the left hand side to allow yourself extra room to reach, and using a short stubby ratchet with a deep socket to reach those 3 nuts. That's it. Magic!! I not only wanted to just share that this is possible, but also wanted to show that these guys truly know what the heck they're doing. They absolutely know their craft and these cars inside and out. They truly are deserving of praise.
Once the Syvecs ECU was in, Rene applied some tweaks from his laptop and we went for a 10-15 minute drive. Since Martin and Rene have driven several Emiras, I asked them to comment on how my shifter felt, since I had noticed some issues getting into 1st gear after installing GRPs short shifter (V1?). Due to personal constraints, I drove in a separate car and allowed Martin / Rene to drive the Emira. I thought this would also be good, as they should know these cars better than I--and they do! Once they were done tuning the car and validating everything, the first thing Rene says is: we need to fix that shifter--it sucks! He asked if I had some teflon-based lube and applied it to the shifter cable in 3 different spots (one at the base where the short-shifter assembly is and the other two behind the rubber pieces covering the cables) all while Martin was rowing through various gear sequences repeatedly.
I then took the car for a quick spin for the first time. What a difference!!! Seriously. First off, although fixing the shifter was outside of scope, it now shifts better than stock--it's buttery smooth by comparison. Wow! Stabbing the throttle now provides instantaneous response--the initial hesitation / bogging is gone entirely. Kicking out the rear takes far less effort now. No random Launch Mode popping up. Stalling issues have disappeared thus far. Mind you, I still need to test the car in cold-start scenarios more. Hill hold works. AC should now be in a closed loop.
They will be refunding me for the Bluetooth module. Apparently, there are new versions coming out soon-ish but they aren't out yet. I'm unsure if I'll pull the trigger on the new module once it's out, but I'll keep it in mind.
All in all, I just want to say that what they did for me and how they went about doing it truly resonated with me. They've truly gone above and beyond to remedy the issues we had, and I'm truly grateful and impressed by Martin, his people, and their products. They've got some new and exciting products in the works coming out real soon (full carbon seats and a 600-hp Emira). I rarely see (let alone write) positive write-ups, but this one is well deserved. Nice job, JUBU!!"
For me my experience was the same and couldn't say it any better!
I met them at their hotel and they did the work in the parking lot, Rene took just under 5 minutes to uninstall the JUBU ECU which was installed already, I didn't have it switched out like the other member. (Mine after the remote sessions wasn't bad at all, unlike some other members) They did video it so I can share that once they provide it.
What I appreciated was their attention to detail. They removed the faulty bluetooth module which is glued on top of the ecu, they removed it carefully and got all residue off, they had to open the ECU obviously for the firmware update and they removed all the black sealed silicone that was originally installed. After the Firmware was update they resealed it with new sealant perfectly!
We did some test drives with Rene in the passenger seat with his laptop plugged in to the ECU. Straight real turner stuff making on the fly changes! What was a surprise to me with this update was that now we have LAUNCH CONTROL! Its set at around 3,500 rpms and boy does it work!! It was low 60's here so traction little issue with cup 2 but this added feature was nice surprise. I have a draggy I have to get sometime on a good day and see what times I can get with this 440 and launch.
Car drives PERFECTLY and all major issues above are resolved. The only thing they will work on with me is overrun maps for those that like them, and he can have those for people that want it and not for those that don't. The autoblip is much improved, again this only works when you apply the brake as there is no gear sensor (They said they will try to create this but you can imagine install for having to put a sensor in our transmission, so idk if that's something I would pay for). Its only activated in track mode btw, but now it kicks higher and you don't have to be on the brake like before. Before it was under harder braking (like you would be doing on a track, makes sense) but most of us drive these on the road and have it un Track mode. So now you barely have to be on the brake and it activates. Also I asked about the hard limiter and they changed mine to a soft limiter. Not as easy on the engine but its better for me as I never liked the aggressive limiter. Note not hitting this very often at all but a few times I have like 2 its aggressive like OEM and I never liked that. Again, personal preference here but I like to know its soft if I ever hit it.
Lastly this tune is amazing on how it lowers the engine temperature. Prior to tuning OEM would get to 200 degrees, now the highest I have been driving is 181, that reduction is heat is amazing to see. And this is being on it!
Issues based on location (CAN related)
- Canada Spec- Most issues
- MN, NH & CA
- NC
- Kuwait- Least issues
Final Conclusion
Martin and Rene are such great people, and their visit was much needed to make this resolution possible. Like I said in the beginning about when things go wrong how do you respond, they made it right by flying to most of us to get these ECU to be plug and play as discussed.
- Was it plug and play, NO! Is it now, YES!
- Does the car feel like it got +40 hp and +50 TQ- YES!
- Is there a language barrier, YES! But we got everything resolved.
- Would I do it again, YES! I am a JUBU customer for life as long as I have a Lotus! Their passion, knowledge, expertise with Lotus and their OCD resonates with me!
- On top of shipping cost with them, is there a customs fee, YES! Mine was $191 its all based on total value of products, I got the ECU plus there cooling system (Have not installed this will update once I do)
- Is there an ECU learning curve, YES! But should not be like we experienced at all, this is only to adjust to altitude and temperatures.
SIDE NOTE- When they were here, I discussed other group buys with them for all their parts and they said yes, once they get back to Austria, they will send me a list of items and group buy level and discounts. I will make another forum on parts they offer.
For those ready for next group buy on 440 please DM me so I can get a new list together. Your experience won't be like us guiea pigs, as they now know the CAN data issues.
Hope this novel

was informative and if anyone has questions feel free to ask!