R4v3n

If you can't buy E85 in the UK, don't bother buying a kit, it doesn't worth it at all. What you can do to lower the bill is to mix SP95-E10 & E85, respectively doing 50/50. On any Toyota, the map is rich enough to have no problem at all to compensate (you can check you STFT and LTFT if you want to follow the evolution of corrected injection).

I'm using the eflexplus kit from eflexfuel. It costs 500€ but it's a very nice kit with Ethanol sensor, good quality electronics and an android app for settings, informations etc. It's easy to mount on the vellfire as you have a lot of room and fuel lines are very accessible. By the way, never go from 100% unleaded (do you name regular gasoline as unleaded in UK as well as in the US ?) to 100% E85 in one shot. Unleaded make deposits in the cylinder, which will be cleaned by the E85, but if you doing it in a single shot, you have a risk to make it go down on the piston rings. So do it like 25% first shot, 50%, 75% then 100% all the time.

The maximum speed is flashable (limit to 180km/h), but the cruise control limit is hardcoded in the ECU program. So you have to dump the ECU memory and try to find in the bin file the memory value which hardcode this speed (with an hexadecimal editor), then modify it and find a way to flash the ECU (which is normally, with Toyota ECU not possible, or not that easy). I know in the US, frankensteinmotorsport, who is well known for playing with 2GR-FE there (as there's a lot of them) got the memory address for USDM ECUs, but JDM ECU are different for that. That's why after contacting a lot of companies and flashers (alientech, OVTune, Frankensteinmotorsport,Ivanperformance) I found the Pivot cruise control, which is doing the job perfectly, for a limited cost (as hours of researches with my ECU sent to Alientech for example would have cost a lot more).

Not used at all. As I use my Vellfire mostly on highways, I just need to set it up to 140km/h (on gauge) or 120 and that's it most of the time. And when I drive it on countryside roads, I don't care about how I use my gas pedal Last but not least, I run it full E85, and my highest consumption is 14L/100km, which means ~10€/100km, which is still "cheap" for this kind of vehicule !

I bought it in April 2022 on Blackhawkjapan, including the electronic module, the brake harness and the special vellfire GGH20 harness (there's a compatibility matrix to find the right harness to buy) for 35000JPY shipping included, which is at the current low JPY rate 215€ or 180£. BTW I just found out I wrote to Pivot support in Japan to be sure to not do any mistake and they were SO fast and gentle to answer, small part of the answer was the exact stuff to buy for my GGH20 : product: 3DA-T (similar to 3DA and 3DA-C, so don't make a mistake) 2A harness (connected to accelerator sensor) BR-1 Brake Harness (connected to brake switch) Then they sent me the Japanese manual + some pictures with english translation. It was pretty fast to install, the "hardest" part for me was to find the speed signal cable because my radio got an aftermarket setup, but I took pictures and sent them, and they helped me to the end, until it was working. The product is great, the support is great (Japanese people), so don't hesitate for the price. Don't forget you'll lose the adaptive cruise control (if you have it), but you can always add a small switch to use one or the other.

About the limit, I searched a lot, I contacted some big specialized companies that modify ECU progs in Italy, UK, USA, nothing. So I bought a PIVOT (Japanese company) cruise control with the plug&play harness for GGH20, and now I'm able to use the cruise control with any speed.

Autodoc

Hi Lilash, maybe I'll cross you on the road to South of France for Christmas ^^ Anyway, I've got a 2009 3.5 FWD, my Japanese documentation talks about 55 & 58L versions (and I should have a 58 if I understand correctly the doc), but in fact it seems I have more like 55L. You could check on EPC data, but I'm sure there's not difference between an Alphard and a Vellfire for the fuel tank.

Could you do a video ?

Usually, the long bip when you try to lock is telling you 2 things (in my experience) : - You have a door open - You have a key inside the car

I don't know a way to check the level. Unless you got a leak, the level will be OK. Just change it every 6 years or 100k km (60k miles).

Use Techstream, it will be easy to add keys !

Donc you have a PC with Toyota Techstream ? First thing for me would be to test the AFS ECU with Techstream.

Small update : E85 price is slowly going down, we are able to find it now for less than 1€/liter.

You should do a small howto for this !