AutoCodes – Nissan – P0201 Nissan

P0201 Nissan Code - Number 1 Fuel Injector Circuit Open

Quick Answer

Engine Control Module (ECM) checks the injectors circuit resistance and monitors the voltage drop during normal operation. Common causes include Faulty fuel injector 1, Fuel Injector 1 harness is open or shorted, Fuel Injector #1 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: P0201 Nissan indicates Number 1 Fuel Injector Circuit Open.
Common causes: Common causes include Faulty fuel injector 1, Fuel Injector 1 harness is open or shorted, Fuel Injector #1 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 18,594

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 Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0201 Nissan Description

Engine Control Module (ECM) checks the injectors circuit resistance and monitors the voltage drop during normal operation. The ECM will trigger the P0201 code when the resistance or voltage drop at the injector 1 is out of specifications.

OBDII Code P0201 Nissan - Number 1 Fuel Injector Circuit Open - AutoCodes.com — P0201 Nissan Code - Number 1 Fuel Injector Circuit Open

What does this mean?

What are the Possible Causes of the DTC P0201 Nissan?

Faulty fuel injector 1
Fuel Injector 1 harness is open or shorted
Fuel Injector #1 circuit poor electrical connection

How to Fix the DTC P0201 Nissan?

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 P0201 Nissan 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 P0201 Nissan code?

Need more information on how to fix the P0201 Nissan code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0201 Nissan code diagnosed by a professional: Find a repair shop in your area

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 P0201 Nissan Code

1. What are the common symptoms of OBDII code P0201 Nissan (Number 1 Fuel Injector Circuit Open)?

- Common symptoms include rough idling, engine misfires, lack of power, poor fuel efficiency, and the illumination of the check engine light.

2. What are the possible causes of OBDII code P0201 Nissan (Number 1 Fuel Injector Circuit Open)?

- The code may be triggered by a faulty fuel injector, wiring issues in the fuel injector circuit, a faulty engine control module (ECM), or a poor electrical connection.

3. How can I diagnose the cause of OBDII code P0201 Nissan (Number 1 Fuel Injector Circuit Open)?

- Diagnosis typically involves checking the wiring and connectors related to the number 1 fuel injector, performing a visual inspection for damaged components, and using a multimeter to test for continuity and proper voltage.

4. What are some repair tips for fixing OBDII code P0201 Nissan (Number 1 Fuel Injector Circuit Open)?

- Repair may involve replacing the faulty fuel injector, repairing damaged wiring or connectors, replacing the ECM if necessary, and ensuring all connections are secure and free of corrosion.

5. Can OBDII code P0201 Nissan (Number 1 Fuel Injector Circuit Open) lead to engine damage if left unresolved?

- Ignoring this code can potentially lead to engine damage over time, as it can result in poor fuel combustion, increased emissions, and other issues that may affect the engine's performance and longevity.

6. How long does it typically take to repair OBDII code P0201 Nissan (Number 1 Fuel Injector Circuit Open)?

- The repair time can vary depending on the exact cause of the issue, but it usually takes a few hours to diagnose and address the problem effectively.

7. Is it safe to continue driving with OBDII code P0201 Nissan (Number 1 Fuel Injector Circuit Open) present?

- It is not recommended to continue driving with this code active, as it can lead to engine performance issues and potential damage if not addressed promptly.

8. Can a DIY enthusiast fix OBDII code P0201 Nissan (Number 1 Fuel Injector Circuit Open) at home?

- While some experienced DIY enthusiasts may be able to diagnose and repair this code at home, it is often best to seek professional help to ensure the correct diagnosis and repair are made.

9. Are there any preventative measures to avoid OBDII code P0201 Nissan (Number 1 Fuel Injector Circuit Open) in the future?

- Regular maintenance, such as fuel injector cleaning, checking for wiring issues during routine inspections, and using high-quality fuel, can help prevent the recurrence of this code.

10. Will resetting the check engine light resolve OBDII code P0201 Nissan (Number 1 Fuel Injector Circuit Open)?

- Simply resetting the check engine light will not fix the underlying issue causing the code. It is essential to diagnose and address the root cause of the problem to prevent the code from reappearing.