P106B Fiat Code - Cylinder 4 Oil Supply Solenoid Valve Switch ON Time Out Of Range
Quick Answer
Multi-Air is an electronically controlled variable intake valve phase and lift system. Common causes include Engine oil level low, Engine oil contaminated, Incorrect oil filter. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P106B Fiat indicates Cylinder 4 Oil Supply Solenoid Valve Switch ON Time Out Of Range.
- Common causes
- Common causes include Engine oil level low, Engine oil contaminated, Incorrect oil filter.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P106B Fiat Description
The Multi-Air valve train has a mechanical camshaft lobe acting on a hydraulic pump located between the camshaft intake lobe and the intake valve. The pump provides oil under pressure to a two-way electro-hydraulic solenoid valve called the Variable Valve Actuator (VVA) Solenoid. The VVA Solenoid is electronically controlled during the specific intake cam lobe event by the Powertrain Control Module (PCM). During the event, the VVA Solenoid is commanded to either hold oil pressure or bleed oil. The VVA Solenoid is a normally open solenoid. The PCM provides 12 volts to close the solenoid. The position of the VVA Solenoid determines the intake valve timing and lift. This change on valve action is similar to creating a change in the camshaft lobe profile affecting the lift and duration of the valve opening.
The Diagnostic Trouble Code (DTC) will be set when the PCM measures the time needed to turn on the VVA Solenoid. When the PCM recognizes that the VVA Solenoids switch on time is too fast or too slow a fault is set.
What are the Possible Causes of the DTC P106B Fiat?
- Engine oil level low
- Engine oil contaminated
- Incorrect oil filter
- Insufficient oil pressure due to a mechanical failure in the oiling system
- Faulty Variable Valve Actuator (VVA) Assembly
How to Fix the DTC P106B Fiat?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P106B Fiat code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P106B Fiat Code
What does the OBDII code P106B mean on a Fiat?
1. P106B indicates that the Cylinder 4 Oil Supply Solenoid Valve Switch ON time is out of range, meaning the engine control module (ECM) has detected an issue with how long the solenoid valve takes to activate. 2.
What are the symptoms of a P106B code in a Fiat?
Common symptoms include rough idling, reduced engine performance, poor fuel economy, and the check engine light turning on. 3.
What causes the P106B code to appear?
Possible causes include a faulty oil supply solenoid valve, low or contaminated engine oil, a clogged oil passage, or an issue with the engine control module (ECM). 4.
Can low oil levels trigger the P106B code?
Yes, low oil levels or dirty oil can cause the solenoid valve to malfunction, leading to this code. 5.
How is the P106B code diagnosed?
A mechanic will use an OBDII scanner to confirm the code, check the oil level and condition, inspect the solenoid valve and wiring, and possibly test the ECM for faults. 6.
How do you fix the P106B code on a Fiat?
Repairs may include replacing the oil supply solenoid valve, cleaning or unclogging oil passages, changing the oil and filter, or addressing electrical issues such as damaged wiring. 7.
Is it safe to drive with a P106B code?
Driving with this code is not recommended, as it can cause further engine damage if the oil flow to the cylinder is insufficient. 8.
How much does it cost to repair a P106B code?
The cost depends on the root cause but typically ranges from $150 to $500, including parts and labor, for solenoid replacement or oil system repairs. 9.
What tools are needed to fix the P106B code?
Tools may include an OBDII scanner, a multimeter for electrical testing, and basic hand tools for solenoid or oil system repairs. 10.
Can a P106B code be caused by a software issue?
Yes, in rare cases, a malfunctioning ECM or outdated software could cause this code, and reprogramming or replacing the ECM may be necessary.
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