Most high-quality ELM327 USB cables use FTDI or CH340 chipsets.
: Many "cheap" ELM327 clones contain a 120-ohm resistor between pins 6 and 14 that interferes with the CAN bus. If you can connect to the engine but not other modules, this resistor may need to be removed. multiecuscan elm327 port settings 2021
: In the same Advanced menu, change the Latency Timer (msec) from the default 16 down to 1 . This is critical for preventing "Timeout" errors during data transfer. 2. MultiECUScan Software Settings Most high-quality ELM327 USB cables use FTDI or