P100A Infiniti Code - VVEL Response Malfunction Bank 1
Quick Answer
VVEL (Variable Valve Event & Lift) is a system that controls valve event and valve lift continuously. Common causes include Faulty VVEL Actuator Motor, VVEL Actuator Motor harness is open or shorted, VVEL Actuator 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
- P100A Infiniti indicates VVEL Response Malfunction Bank 1.
- Common causes
- Common causes include Faulty VVEL Actuator Motor, VVEL Actuator Motor harness is open or shorted, VVEL Actuator 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.
Code P100A Infiniti Description
What are the Possible Causes of the DTC P100A Infiniti?
- Faulty VVEL Actuator Motor
- VVEL Actuator Motor harness is open or shorted
- VVEL Actuator Motor circuit poor electrical connection
- Faulty VVEL actuator sub assembly
- Faulty VVEL ladder assembly
- Faulty VVEL control module
How to Fix the DTC P100A Infiniti?
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 P100A Infiniti 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 P100A Infiniti code?
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Information for Specific Infiniti Models
- P100A 2009 Infiniti G37_sedan — VVEL Response Malfunction Bank 1
- P100A 2010 Infiniti G37_sedan — VVEL Response Malfunction Bank 1
- P100A 2011 Infiniti G37_sedan — VVEL Response Malfunction Bank 1
- P100A 2012 Infiniti G37_sedan — VVEL Response Malfunction Bank 1
Frequently Asked Questions about P100A Infiniti Code
1. What does OBDII code P100A mean on an Infiniti vehicle?
P100A indicates a "VVEL Response Malfunction Bank 1," meaning the Variable Valve Event and Lift (VVEL) system on the engine’s Bank 1 is not responding correctly.
2. What are the symptoms of a P100A code in an Infiniti?
Common symptoms include rough idling, reduced engine performance, hesitation during acceleration, and the Check Engine Light illuminating.
3. What causes the P100A code to trigger?
The code can be caused by issues like a faulty VVEL actuator, damaged VVEL control module, wiring problems, low oil pressure, or dirty engine oil.
4. Can low oil pressure cause a P100A code?
Yes, low oil pressure or dirty engine oil can affect the VVEL system's operation, leading to this code.
5. How do you diagnose a P100A code?
Diagnosis involves checking the VVEL actuator and control module, inspecting wiring connections, verifying oil pressure, and ensuring the engine oil is clean and at the correct level.
6. Can I drive my Infiniti with a P100A code?
Driving with a P100A code is not recommended, as it can lead to reduced performance and potential engine damage if not addressed promptly.
7. How much does it cost to fix a P100A code?
Repair costs vary depending on the cause but can range from $150 for basic diagnostics and cleaning to over $1,000 for replacing the VVEL actuator or module.
8. Is a software update ever needed to fix the P100A code?
In some cases, a software update to the engine control module (ECM) may be necessary if Infiniti has issued a technical service bulletin (TSB) regarding this issue.
9. What maintenance can prevent the P100A code from occurring?
Regular oil changes with the correct oil type and viscosity, along with periodic inspections of the VVEL system, can help prevent this code.
10. Does the P100A code only affect Bank 1?
Yes, this code specifically refers to Bank 1, which is the side of the engine containing cylinder 1. For Bank 2, a different code would be triggered.
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