This is for people who are running a DECAT downpipe on their petrol car and need the engine management light turned off for the code P0420 (catalyst below effieciency).
The 2nd O2 off/Lambda Delete Upgrade is only the software only, this will remove the fault codes from the ecu software. This makes the ECU (engine control unit) not look for these fault codes in relation to the O2 off/Lambda sensor. Once this software is applied the 2nd O2 off/Lambda system will not continue to function unless or when the vehicle is returned to Stock/Original.
Please check if your car is compatible with this Upgrade.
The O2 off/Lambda Delete Upgrade is intended for off-road use vehicles only. Removal of a O2 off/Lambda is likely to make your vehicle illegal for use on a public road. This is not legal advice and if you are unsure if this applies to your vehicle, please seek further advice.