Custom Code Diagnostics

Diagnostics for Custom Code is only available from v6.9.0 and newer.

Diagnostics for Antilag is only available from v7.0 and newer.

Diagnostics for Ethanol Override, Exhaust Flap, and Valet Mode is only available from v7.1 and newer.

Users can access the Custom Code Diagnostics page after connecting the MG Flasher app to their vehicle and navigating from MyCar → Open Car → Diagnostics → Custom Code Diagnostics.

Information about DTCs related to Custom Code can be found here: https://mgflasher.atlassian.net/wiki/spaces/MGFLASHER/pages/710836248

Custom Code Diagnostics Page

Displayed diagnostic options are dependent on the Custom Code version actively installed on your vehicle. See https://mgflasher.atlassian.net/wiki/spaces/MGFLASHER/pages/661028865 and https://mgflasher.atlassian.net/wiki/spaces/MGFLASHER/pages/660635652 for details.

General Diagnostics

Read All EEPROM: Check the active values/status of all available Custom Code On-The-Fly options.

Set All EEPROM: Available only for troubleshooting. Sets all slots, status to predefined values.

Save EEPROM: Performs an ignition cycle to initiate saving.

More info available here:

Switchable Maps Diagnostics

You can read and set the active Switchable Map slot you would like to use with the options shown. Definition for slots can be found here:

Burbles Diagnostics

You can read and set the active Burble slot you would like to use with the options shown. Slot 5 is only available with Custom Code v7.1 or newer. Definition for slots can be found here:

Max Cooling Diagnostics

You can read the active Max Cooling status and enable or disable Max Cooling. More info available here:

Antilag Diagnostics

Read the active stationary RPM, or set it from the popup screen. More info available here:

Ethanol Override Diagnostics

Read the active status or value for ethanol override, enable or disable ethanol override, set the active value for ethanol override. More info available here:

Exhaust Flap On-The-Fly Diagnostics

Check the current status of the Exhaust Flap OTF, or you could set it to be “Open”, “Closed” or “OEM”. More info available here:

Radiator Flap On-The-Fly Diagnostics

Check the current status of the Exhaust Flap OTF, or you could set it to be “Open”, “Closed” or “OEM”. More info available here:

Valet Mode Diagnostics

Check the status of Valet Mode, or you could enable/disable it. More info available here: