AutoCodes – Acura – P0201 Acura

P0201 Acura Code - No. 1 Cylinder Injector Circuit Malfunction

Quick Answer

The injector supplies fuel to the engine and is controlled by the Powertrain Control Module (PCM) ON/OFF command. Common causes include Faulty No, 1 Cylinder Injector, No. 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 Acura indicates No. 1 Cylinder Injector Circuit Malfunction.
Common causes: Common causes include Faulty No, 1 Cylinder Injector, No.
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 590

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 15, 2023

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

The injector supplies fuel to the engine and is controlled by the Powertrain Control Module (PCM) ON/OFF command. In the PCM, the injector driver receives a drive command from the Central processing unit (CPU) and drives the injector. The CPU monitors injector currents and returns a signal from the injector driver to monitor the terminal voltage of PCM. If the monitored conditions are abnormal for a specified time, the PCM detects a malfunction and stores a Diagnostic Trouble Code (DTC).

OBDII Code P0201 Acura - No. 1 Cylinder Injector Circuit Malfunction - AutoCodes.com — P0201 Acura Code - No. 1 Cylinder Injector Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC P0201 Acura?

Faulty No. 1 Cylinder Injector
No. 1 Cylinder Injector harness is open or shorted
No. 1 Cylinder Injector circuit poor electrical connection
Faulty Injector Relay
Faulty Powertrain Control Module (PCM)
Faulty High Pressure Fuel Pump

How to Fix the DTC P0201 Acura?

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 Acura 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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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 Acura Code

1. What are common symptoms of OBDII code P0201 (Acura) indicating a No. 1 Cylinder Injector Circuit Malfunction?

- Common symptoms include rough idling, misfiring, poor fuel efficiency, and illuminated Check Engine Light.

2. What are the possible causes of OBDII code P0201 (Acura) related to the No. 1 Cylinder Injector Circuit Malfunction?

- Causes may include a faulty fuel injector in cylinder No. 1, wiring issues in the injector circuit, or a problem with the engine control module (ECM).

3. How can I diagnose the No. 1 Cylinder Injector Circuit Malfunction associated with OBDII code P0201 in my Acura?

- Diagnosis typically involves using an OBDII scanner to retrieve the code, testing the fuel injector in cylinder No. 1, and inspecting the wiring and connections in the injector circuit.

4. Can a dirty fuel injector cause OBDII code P0201 (Acura) to be triggered?

- Yes, a dirty or clogged fuel injector in cylinder No. 1 can cause insufficient fuel delivery, leading to the triggering of code P0201.

5. What are some repair tips for addressing OBDII code P0201 (Acura) related to the No. 1 Cylinder Injector Circuit Malfunction?

- Repair tips may include cleaning or replacing the fuel injector, checking and repairing any damaged wiring, and resetting the ECM after completing repairs.

6. Is it safe to continue driving my Acura with OBDII code P0201 indicating a No. 1 Cylinder Injector Circuit Malfunction?

- It is not recommended to continue driving the vehicle with this code present, as it can lead to further engine damage and poor performance.

7. How much does it typically cost to repair OBDII code P0201 (Acura) caused by a No. 1 Cylinder Injector Circuit Malfunction?

- The cost of repair can vary depending on the exact cause, but it may range from $150 to $500 for parts and labor.

8. Can I reset the Check Engine Light after repairing OBDII code P0201 (Acura) myself?

- Yes, you can reset the Check Engine Light using an OBDII scanner or by disconnecting the car battery for a few minutes to clear the code.

9. Are there any preventative maintenance steps to avoid OBDII code P0201 (Acura) in the future?

- Regularly servicing the fuel injectors, using quality fuel, and keeping up with overall vehicle maintenance can help prevent issues leading to code P0201.

10. How long does it typically take to repair OBDII code P0201 (Acura) once the underlying issue is identified?

- The repair time can vary based on the complexity of the problem, but it may take anywhere from 1 to 3 hours for a skilled mechanic to address the No. 1 Cylinder Injector Circuit Malfunction.