EconTool for Nissan ELM327 is a program designed to diagnose Nissan and Toyota vehicles. The program is compatible with Nissan cars manufactured between 1990 and 2014, and on vehicles younger than 2014, operation is also possible, but not guaranteed. The program supports several ECUs for Nissan cars, which are diagnosed by Rx, Tx lines, K-line, and CAN BUS. However, diesel ECUs are not supported.

The program offers various operating modes, including data reading mode, board (trip) computer mode, active test mode, and read and reset errors. Additionally, for Nissan Consult II and III protocol, the program offers correction of ignition timing and idle speed, learning the closed position of the throttle valve, learning the air supply when working at idle, and resetting fuel adaptations. For CVTs and ATs, the program provides the function of changing the intensity of engine braking and resetting fluid degradation counter for new CVTs. The program also supports Toyota vehicles with K-line diagnostics via ELM327 adapter, but the support is experimental.

Overall, EconTool for Nissan ELM327 is a useful program for Nissan and Toyota vehicle owners who want to diagnose and troubleshoot their cars.