Renault Megane 2 - Defective pressure sensor

In above vehicles, a defective pressure sensor can lead to operating issues.

The respective voltage supplies of pressure sensor (image) in air-conditioning system and accelerator pedal sensor are connected. In case of a pressure sensor short circuit, the supply voltage of accelerator pedal sensor can be impacted. This results (especially when engine is cold) in the engine choking and/or accelerating badly.

In order to remedy the problem, check the respective voltage supplies and, where necessary, check/replace pressure sensor.