AutoCodes – Generic – P1227

P1227 Code - Fuel Injector 2 Control Circuit Shorted

Quick Answer

The Engine Control Module (ECM) supplies voltage to each fuel injector on the injector positive voltage control circuits. Common causes include Faulty Fuel Injector 2, Fuel Injector 2 harness is open or shorted, Fuel Injector 2 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: P1227 indicates Fuel Injector 2 Control Circuit Shorted.
Common causes: Common causes include Faulty Fuel Injector 2, Fuel Injector 2 harness is open or shorted, Fuel Injector 2 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 33,970

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 Nov 10, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1227 Description

The Engine Control Module (ECM) supplies voltage to each fuel injector on the injector positive voltage control circuits. The ECM energizes each fuel injector by grounding the control circuit of that fuel injector. The ECM monitors the status of the injector positive voltage control circuits and the fuel injector control circuits. When a fuel injector circuit condition is detected by the ECM, the affected fuel injectors will be disabled and may disable the affected group of fuel injectors. The Diagnostic Trouble Code (DTC) will set when the ECM injector output driver detects an incorrect current on a fuel injector circuit.

OBDII Code P1227 - Fuel Injector 2 Control Circuit Shorted - AutoCodes.com — P1227 Code - Fuel Injector 2 Control Circuit Shorted

What does this mean?

What are the Possible Causes of the DTC P1227?

Faulty Fuel Injector 2
Fuel Injector 2 harness is open or shorted
Fuel Injector 2 circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P1227?

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 P1227 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 P1227 code?

Need more information on how to fix the P1227 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1227 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P1227 Audi — Injector Circuit Cylinder 3 Short To Ground
P1227 Buick — Fuel Injector 2 Control Circuit Shorted
P1227 Cadillac — Fuel Injector 2 Control Circuit Shorted
P1227 Chevrolet — Fuel Injector 2 Control Circuit Shorted
P1227 Ford — Wastegate Failed Closed Over Pressure
P1227 GMC — Fuel Injector 2 Control Circuit Shorted
P1227 Infiniti — Accelerator Pedal Position Sensor 2 Circuit Low Input
P1227 Nissan — Accelerator Pedal Position Sensor 2 Circuit Low Input
P1227 Volkswagen — Injector Circuit Cylinder 3 Short To Ground

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 P1227 Code

1. What are the common symptoms of OBDII code P1227 (Fuel Injector 2 Control Circuit Shorted)?

The common symptoms include rough engine idle, misfires, decreased fuel efficiency, and potential stalling of the vehicle.

2. What are the possible causes of OBDII code P1227?

Possible causes include a short circuit in the wiring harness of fuel injector 2, a malfunctioning fuel injector, a faulty Engine Control Module (ECM), or a poor electrical connection.

3. How serious is OBDII code P1227?

While the vehicle may still be operable with this code, it is important to address the issue promptly to prevent further damage to the engine and ensure optimal performance.

4. How can I diagnose OBDII code P1227?

Diagnosis typically involves using a scan tool to read the code, inspecting the wiring and connectors related to fuel injector 2, testing the fuel injector's resistance, and checking the ECM for faults.

5. Can I drive my vehicle with OBDII code P1227?

It is not recommended to drive the vehicle for an extended period with this code present, as it can lead to poor engine performance and potentially cause further damage.

6. How can I repair OBDII code P1227?

Repair options include fixing any wiring issues, replacing the faulty fuel injector, repairing or replacing the ECM, and ensuring all electrical connections are secure.

7. What is the typical cost to repair OBDII code P1227?

The cost of repair can vary depending on the underlying issue, but it may range from $200 to $700 or more, including parts and labor.

8. Can I clear OBDII code P1227 without fixing the issue?

While you can clear the code using a scan tool, it is not recommended to do so without addressing the root cause, as the problem will likely reoccur.

9. How long does it take to repair OBDII code P1227?

The repair time can vary based on the specific cause of the code, but it may take anywhere from 1 to 4 hours or more to diagnose and fix the issue.

10. Is OBDII code P1227 specific to a certain vehicle make or model?

While the code description is standard across vehicles using OBDII systems, the specific repair procedures and components involved may vary between different makes and models.