P01FF

Symptoms

• Reduced engine power
• Rough idling
• Increased fuel consumption
• Black smoke from the exhaust pipe
• The engine goes into emergency mode

Causes

• Malfunction of one of the pressure sensors
• Dirty or clogged pressure tubes
• Problems with the wiring harness to the sensors
• Corrosion or poor electrical contact
• Malfunction of the turbocharger itself
• Mechanical damage to tubes or sensors

How to Fix

1. Carry out diagnostics with a scanner to view the readings of both sensors in real time
2. Visually inspect sensors, tubes and electrical connections for damage
3. Check the continuity and voltage in the sensor wiring harness
4. Clean or blow out pressure tubes
5. Replace faulty pressure sensor
6. Clean electrical contacts and terminals

Related codes

Error P01FF by Vehicle Brand