Performance upgrades for the LEAF

Good news everyone! The "Resolver Write" feature is now released to the latest Leafspy Pro, Android version 0.53.181

Here's a how-to video I made on how to use it:

Performance community, we need e+ CAN-logs! Currently all 160kW inverter swaps are limited to 400A, which means around 145kW max to the wheels. The e+ LEAF actually can do 180kW, but we haven't figured out what messages is needs to do so. If you have access to an e+ >2019 LEAF, and have the hardware to do a CAN-log of the EV-CAN bus (possible warranty void!), let me know. We need a full throttle run with Leafspy showing that 500A (180kW) was pulled from the battery, while CAN-logging.

Please don't PM me and say that you have an e+ and OBD2 dongle, this is unfortunately a bit more complex than that. We need someone willing to splice into the wiring harness to access the hidden EV-CAN on the e+. You will also need some dedicated CAN hardware to read it (Kvaser, PCAN, etc.) Recently I got a hold of the ZE1 workshop manuals, so here is the place where the ZE1 LEAF has the EV-CAN:

CAN-Layout, EV-CAN marked in red


One place to splice in would be directly at the VCM, connector E61:



The person that supplies the CAN-logs will have the most impact on the performance upgrade community by far! Can we make this a community effort?

Still no luck with getting 500A, but we are getting there slowly. I got a lot of fault codes cleared now that I know what to send on the bus.



Before code:


After code:


I think that the reason we don't get 500A is due to having fault codes active. If I were writing automotive code, I would put the vehicle in some limp mode when fault codes are active. Let's see if we can get rid of that last U1000!

OKAY! Now we're talking! I made some more progress, just two more codes to squash!


I will update the inverter code on github once I get the last two ones fixes. The P318E in particular sounds quite bad; "Traction motor inverter is unable to receive the EV system CAN signal from VCM"

Either of the following statuses is observed.
• No impact to vehicle behavior
• Stops drive control of traction motor


So getting that one cleared is now top prio!

I finally got it

Now the code sends enough CAN messages to make the system believe everything is fine:


I've updated the inverter code on Github: Nissan-LEAF-Inverter-Upgrade/can-bridge-inverter.c at main · dalathegreat/Nissan-LEAF-Inverter-Upgrade
Warning, that code is r o u g h. I will optimize it later on when I know that it actually gives 500A now.

Now to continue with some error-free roadtesting....