P158b Renault [updated] Now

The engine may idle too high, too low, or surge/struggle at a standstill.

What is the of your Renault (e.g., Duster, Clio)? Does it have a diesel (dCi) or petrol (TCe) engine? Are you experiencing rough idle or stalling ? p158b renault

The component itself has failed.

Open or shorted harness related to the actuator. Poor Electrical Connection: Corrosion on connector pins. The engine may idle too high, too low,