AutoCodes – Generic – P0283

P0283 Code - Cylinder 8 Injector Control Circuit High Voltage

Quick Answer

The Engine Control Module (ECM) supplies voltage to each Fuel Injector on the high control circuits. Common causes include Dirty Fuel Injector 8, Faulty Fuel Injector 8, Plugged Fuel Injector 8. 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: P0283 indicates Cylinder 8 Injector Control Circuit High Voltage.
Common causes: Common causes include Dirty Fuel Injector 8, Faulty Fuel Injector 8, Plugged Fuel Injector 8.
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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 12,446

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 Mar 23, 2024

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P0283 Description

The Engine Control Module (ECM) supplies voltage to each Fuel Injector on the high control circuits. The ECM energizes each fuel injector by grounding the low control circuit of the fuel injector. The ECM monitors the status of the fuel injector circuits. When a fuel injector circuit condition is detected by the ECM, the affected fuel injector(s) is disabled. The Diagnostic Trouble Code (DTC) will be set when the ECM detects the fuel injector control circuit is shorted to voltage for greater than 2 s.

OBDII Code P0283 - Cylinder 8 Injector Control Circuit High Voltage - AutoCodes.com — P0283 Code - Cylinder 8 Injector Control Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P0283?

Dirty Fuel Injector 8
Faulty Fuel Injector 8
Plugged Fuel Injector 8
Fuel injector 8 harness is open or shorted
Fuel injector 8 circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P0283?

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 does this mean?

Code Tech Notes

A clogged or partially clogged fuel injector can cause this code. Start by performing an injector flush before replacing the injector.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0283 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 P0283 code?

Need more information on how to fix the P0283 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0283 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P0283 Audi — Cylinder 8 Injector Circuit High
P0283 Buick — Cylinder 8 Injector Control Circuit High Voltage
P0283 Cadillac — Cylinder 8 Injector Control Circuit High Voltage
P0283 Chevrolet — Cylinder 8 Injector Control Circuit High Voltage
P0283 Ford — Cylinder 8 Injector Circuit High
P0283 GMC — Cylinder 8 Injector Control Circuit High Voltage
P0283 KIA — Cylinder 8 Injector Circuit High
P0283 Lincoln — Cylinder 8 Injector Circuit High
P0283 Mercedes-Benz — Cylinder 8 Injector Circuit High
P0283 Mercury — Cylinder 8 Injector Circuit High
P0283 Volkswagen — Cylinder 8 Injector Circuit High

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 P0283 Code

What does the OBD-II code P0283 mean?

P0283 indicates that the engine control module (ECM) has detected high voltage in the control circuit of the fuel injector for cylinder 8.

What are common symptoms of code P0283?

Common symptoms include poor engine performance, rough idling, misfires, reduced fuel efficiency, and possibly an illuminated check engine light.

What causes the P0283 code?

Potential causes include a faulty fuel injector, damaged or corroded wiring, a bad injector driver in the ECM, or a poor electrical connection in the injector circuit.

Can I drive with the P0283 code active?

Driving with this code is not recommended, as it may cause engine performance issues and could lead to further damage if left unaddressed.

How is the P0283 code diagnosed?

A mechanic typically uses an OBD-II scanner to confirm the code, inspects the wiring and connections in the injector circuit, and tests the fuel injector and ECM for proper operation.

How do you fix the P0283 code?

Repairs may involve replacing the fuel injector, repairing or replacing damaged wiring, cleaning corroded connectors, or replacing the ECM if it is determined to be faulty.

What tools are needed to troubleshoot the P0283 code?

Common tools include an OBD-II scanner, a multimeter for electrical tests, and possibly an injector test light or noid light to check injector operation.

Can a dirty fuel injector cause the P0283 code?

While a dirty injector might cause performance issues, the P0283 code specifically refers to an electrical problem, not a clog or restriction.

How much does it cost to fix the P0283 code?

Repair costs vary depending on the issue. Replacing a fuel injector might cost $200–$400, while fixing wiring or connectors could be less expensive. ECM replacement could cost $500 or more.

Will clearing the code fix the P0283 issue?

Clearing the code will remove it temporarily, but if the underlying issue isn’t resolved, the code will return.