What does P0798 Mean? The PCM has detected an abnormality in an electronic pressure control solenoid or solenoid circuit. The computer controlled automatic transmission uses varying degrees of hydraulic pressure to provide shift actuation and torque converter lockup. Pressure is regulated using one or more electronic pressure control solenoids which are controlled by the PCM. engine code P0798P0798 fixobd P0798dtc P0798obd code P0798obd2 P0798P0798 car codediagnostic code P0798car code P0798check engine code P0798fehlercode P0798P0798 fiatcodigo P0798codigo falla P0798P0798 kody b??dówcodigo de falla P0798 What are the common causes of P0798 ? Fuel with a large percentage of sulfur will clog the DPF quickly The Mass Airflow sensor will also cause this problem. Mass Airflow circuit malfunction. Dirty air cleaner element Damaged DPF How do you troubleshoot P0798 ? Deactivation of cylinders is achieved by releasing a synchroniser pin that normally interlocks the cam follower and rocker arms. P0798 code resolves the synchroniser pin is released using hydraulic pressure which is controlled by a dedicated solenoid. Searches related to P0798 - Pressure Control Solenoid 'C' Electrical p0968 ford explorer p0798 ford explorer p0986 p0798 audi p0798 bmw pressure control solenoid c stuck off p2770