AutoCodes – Generic – P107A

P107A Code - Variable Valve Lift Power Stage Warning

Quick Answer

On the Valvetronic VVT (Variable Valve Lift Control), the variable valve gear reduces fuel consumption by adjusting the stroke of the intake valves. Common causes include Faulty Variable Valve Timing (VVT) Servo Motor, Variable Valve Timing Servo Motor harness is open or shorted, Variable Valve Timing Servo Motor circuit poor electrical connection. 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: P107A indicates Variable Valve Lift Power Stage Warning.
Common causes: Common causes include Faulty Variable Valve Timing (VVT) Servo Motor, Variable Valve Timing Servo Motor harness is open or shorted, Variable Valve Timing Servo Motor circuit poor electrical connection.
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.

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Code Popularity 6,869

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 11, 2021

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P107A Description

On the Valvetronic VVT (Variable Valve Lift Control), the variable valve gear reduces fuel consumption by adjusting the stroke of the intake valves. An electric motor is used to drive a worm gear that moves the eccentric shaft. The eccentric shaft uses intermediate levers that change the effect of the camshaft on the rocker arms.
Electrical overload protection. The engine management monitors the Variable Valve Timing (VVT) motor's current draw. If the monitored current draw exceeds a defined threshold for several seconds the VVT system is deactivated (VVT emergency operation mode), and the engine reverts to throttled operation.

OBDII Code P107A - Variable Valve Lift Power Stage Warning - AutoCodes.com — P107A Code - Variable Valve Lift Power Stage Warning

What does this mean?

What are the Possible Causes of the DTC P107A?

Faulty Variable Valve Timing (VVT) Servo Motor
Variable Valve Timing Servo Motor harness is open or shorted
Variable Valve Timing Servo Motor circuit poor electrical connection

How to Fix the DTC P107A?

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 P107A 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.

Need more information about the P107A code?

Need more information on how to fix the P107A code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P107A code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P107A BMW — Variable Valve Lift Power Stage Warning
P107A MINI — Variable Valve Lift Power Stage Warning

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P107A Code

1. What are the common symptoms of OBDII code P107A (Variable Valve Lift Power Stage Warning)?

- Common symptoms include rough idling, decreased engine performance, and illuminated Check Engine light.

2. What are the potential causes of OBDII code P107A?

- Possible causes include a faulty variable valve lift power stage, wiring issues, or a malfunctioning engine control module.

3. How can I diagnose OBDII code P107A?

- Diagnosis typically involves using an OBDII scanner to retrieve the code, checking the variable valve lift power stage components for damage, and inspecting the wiring for any issues.

4. Can driving with OBDII code P107A cause further damage to my vehicle?

- Continuing to drive with this code may lead to reduced engine performance and potentially cause damage to other engine components over time.

5. How can I repair OBDII code P107A?

- Repairing this code often involves replacing the faulty variable valve lift power stage, repairing any damaged wiring, or reprogramming the engine control module.

6. Is it safe to continue driving with OBDII code P107A?

- It is not recommended to drive with this code active, as it can lead to poor engine performance and potential long-term damage.

7. Can I reset OBDII code P107A without fixing the underlying issue?

- While clearing the code may temporarily turn off the Check Engine light, the underlying issue causing the code will need to be addressed to prevent further problems.

8. How much does it typically cost to repair OBDII code P107A?

- The cost of repair can vary depending on the specific cause of the code, but it may range from $200 to $600 or more, including parts and labor.

9. Are there any preventative measures to avoid OBDII code P107A in the future?

- Regular maintenance, including engine inspections and following manufacturer's service recommendations, can help prevent issues that may trigger this code.

10. Can a DIY enthusiast fix OBDII code P107A at home?

- While some experienced DIY enthusiasts may be able to diagnose and replace the faulty components themselves, it is recommended to consult a professional mechanic for proper diagnosis and repair to ensure the issue is resolved correctly.