Guides
Nissan and Infiniti ECU tuning guides
Practical how-tos for owners: backing up your ECU, what each map does, and guides for specific cars.
How to back up your Nissan ECU with a KKL cable
Save a full copy of your Nissan or Infiniti ECU for free, through the OBD port with a $10 CH340 K-line cable and VQLab Lite. Step by step.
Read the guide →Nissan Fuga 450GT and 350GT ECU tuning
What you can tune on a Y50 Nissan Fuga (VK45DE 450GT, VQ35DE and VQ35HR 350GT) with VQLab: supported ECUs, map switching, idle lope and how to start.
Read the guide →What can you tune on a Nissan ECU?
A plain-English guide to the maps in a Nissan or Infiniti ECU (ignition, fuel, MAF, injectors, cams, limiters) and what changing each one does.
Read the guide →