P0105 to P0109 concern the manifold/barometric pressure circuit. The family distinguishes a circuit fault, an implausible operating range, low input, high input and an intermittent input. A pressure reading that does not make sense can reflect an electrical problem or what is happening in the engine’s air system.
Codes covered P0105, P0106, P0107, P0108 and P0109. HELLA OBD code reference.
A replacement sensor has not solved it
Check that the replacement was identified for the exact engine. A connector that fits does not establish compatibility. Save the original and replacement part numbers, the full fault text and any live-data report taken before the change.
Ross-Tech’s P0106 guidance covers connections, leaks, the pressure sensor and engine-controller considerations. It also identifies engine-specific software and timing issues. Those examples show why the engine code and current software matter; they do not justify applying one model’s update to another. P0106 technical reference.
Questions the diagnosis should answer
- Does the reading make sense before the engine starts and as operating conditions change?
- Are pressure, airflow and other related fault entries occurring together?
- Has intake, exhaust or crankcase-ventilation work already been completed?
- Are the supply, earth and signal findings documented using the correct diagram?
These questions establish whether further vehicle testing or an ECU input assessment is appropriate. An ECU on a bench cannot reproduce every air leak or engine operating condition.
Discuss the fault with AXION
Send your pressure-sensor fault report, including engine details and previous repairs. For a wider overview, use the fault-code and module directory.
Use the full fault description from your scan and the repair information for your vehicle.