Looking to change Pid's

[cableline01]

I love this, but I'm trying to adjust the screen to display Ethanol content and fuel level in Gallons. How do I load a custom code to the device. I cant seem to get it to work with Arduino studio.

[VaAndCob]

I love this, but I'm trying to adjust the screen to display Ethanol content and fuel level in Gallons. How do I load a custom code to the device. I cant seem to get it to work with Arduino studio.

This source code was made with Arduino IDE 2.0.7, to debug, you'd follow the steps.

1. Try compiling my original code to get it to work or not. If not. You must find the cause.
2. Try your custom code (change PID and Formula to read the Fuel content)
3. This original source code only can read short-pattern ELM327 data response. but some PID especially extend pid return long-pattern data that it won't work for now.