P106B on Fiat
Manufacturer-Specific Powertrain Sensor/Solenoid Fault
P106B on Fiat vehicles indicates manufacturer-specific powertrain sensor/solenoid fault. Au7o has documented this code across 1 Fiat model — most commonly on 500. P106B is a manufacturer-specific powertrain code whose meaning varies significantly by maker, so it should not be read as a single fixed fault. Reported definitions include a cylinder 4 oil-supply solenoid valve timing fault (Chrysler/Fiat group), a fuel pressure regulator performance issue (some Honda/Toyota references), a throttle valve stuck/hard-to-move condition (some VW references), and pressure-sensor correlation faults on others. Because of this, the specific circuit must be confirmed with make-and-model service data before repair. Typical repair costs on Fiat range from $800 to $1,400, depending on the specific model and root cause.
Common Causes of P106B
- •Oil supply/control solenoid valve fault (Chrysler/Fiat group)
- •Fuel pressure regulator or fuel system performance issue (some makes)
- •Throttle body/valve sticking or contamination (some VW)
- •Pressure sensor or sensor-correlation fault
- •Wiring, connector, or ground problems in the affected circuit
- •Low or dirty engine oil (oil-solenoid variants)
- •Faulty PCM/ECM
P106B on Fiat by Model
Fiat 500(1 issue)
- MultiAir Actuator Failure2012-2019
The MultiAir electro-hydraulic valve actuation system can fail, causing rough idle, misfires, and check engine light with codes P0014 or P1014. This is a common failure on the 1.4L MultiAir engine, often occurring between 40,000 and 80,000 miles.
Looking for P106B on a different make?
View P106B across all makes →Frequently Asked Questions
What does P106B mean on Fiat?▼
P106B stands for "Manufacturer-Specific Powertrain Sensor/Solenoid Fault." P106B is a manufacturer-specific powertrain code whose meaning varies significantly by maker, so it should not be read as a single fixed fault. Reported definitions include a cylinder 4 oil-supply solenoid valve timing fault (Chrysler/Fiat group), a fuel pressure regulator performance issue (some Honda/Toyota references), a throttle valve stuck/hard-to-move condition (some VW references), and pressure-sensor correlation faults on others. Because of this, the specific circuit must be confirmed with make-and-model service data before repair. On Fiat specifically, this code is documented across 1 model.
What causes P106B on Fiat vehicles?▼
Common causes on Fiat: Oil supply/control solenoid valve fault (Chrysler/Fiat group), Fuel pressure regulator or fuel system performance issue (some makes), Throttle body/valve sticking or contamination (some VW), Pressure sensor or sensor-correlation fault, Wiring, connector, or ground problems in the affected circuit. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P106B on a Fiat?▼
Repair costs on Fiat range from $800 to $1,400, depending on the specific model and root cause.
Which Fiat models have P106B documented?▼
Au7o has documented P106B on 1 Fiat model: 500.