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Code P2673

Quick reference

P2673 at a glance

Plain-language meaning
This code means that the car's computer is having trouble figuring out the right timing for the fuel pump, which helps the engine run smoothly.
Urgency
Moderate – Addressing this issue promptly can prevent further engine damage.
Difficulty
Moderate
System
Engine Performance
Tools mentioned
OBD-II scanner, Multimeter, Wrench set

This summary uses the existing diagnostic information shown in full below.

Laymans terms

This code means that the car's computer is having trouble figuring out the right timing for the fuel pump, which helps the engine run smoothly.

Explanation

The engine control module (ECM) has not successfully learned the correct timing for the fuel injection pump, which is necessary for optimal engine performance.

Technical description

The P2673 code indicates that the ECM has detected an issue with the calibration process of the injection pump timing. This process is crucial for ensuring that the fuel is injected into the engine at the right time for efficient combustion. If the timing is off, it can lead to poor engine performance and increased emissions.

Symptoms

• Check Engine Light is on

• Poor engine performance

• Increased fuel consumption

Common Causes

• Faulty injection pump

• Wiring issues or poor connections

• Faulty ECM or software issue

Glossary

ECM: Engine Control Module

Injection Pump: A device that delivers fuel to the engine's cylinders at the correct time and pressure.

Diagnosis steps

• Use an OBD-II scanner to confirm the code

• Inspect the wiring and connections to the injection pump

• Check the injection pump for faults or damage

Repair procedures

• Repair or replace faulty wiring or connectors

• Re-calibrate the injection pump timing

• Replace the injection pump if necessary

Tools required

• OBD-II scanner

• Multimeter

• Wrench set

Estimated repair cost

$200 - $1000

Difficulty level

Moderate

Commonly affected vehicles

• Ford F-250

• Chevrolet Silverado

• Dodge Ram 2500

Preventive measures

• Regular maintenance and inspection of fuel system components

• Use high-quality fuel

• Keep the ECM software updated

Error code type

Engine Performance

User experience recommendations

• Avoid driving the vehicle until the issue is fixed to prevent further damage.

• Consult with a qualified mechanic for a thorough inspection.

Warranty information

Check with your vehicle manufacturer for specific warranty coverage related to the injection system.

Historical data

The P2673 code has been associated with diesel engines that rely heavily on precise fuel injection timing for efficiency and performance.

Urgency level

Moderate – Addressing this issue promptly can prevent further engine damage.

Testing conditions

• Engine at operating temperature

• Vehicle in a safe, stationary position

Component location

The injection pump is typically located on the engine block, connected to the fuel lines.

FAQs

Q: Can I drive with a P2673 code?
A: It's not recommended to drive for long periods with this code, as it can lead to engine performance issues.

Q: How serious is the P2673 code?
A: While not immediately critical, it should be addressed soon to avoid potential engine damage.

Optional diagnostic gear

Tools that may help diagnose P2673

THINKCAR ThinkScan Bidirectional diagnostic tool illustration

High-End · Full-system diagnostics

THINKCAR ThinkScan Bidirectional

A full-system bidirectional platform aimed at advanced DIY users and professional diagnostic workflows.

Network faults often require full-system access instead of a generic code reader alone.

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Klein Tools MM325 diagnostic tool illustration

Universal · Digital multimeter

Klein Tools MM325

A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.

Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.

View on Amazon
WORKPRO Wiring Repair Kit diagnostic tool illustration

Universal · Wire connectors and repair kit

WORKPRO Wiring Repair Kit

Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.

Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.

View on Amazon

These are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.

Source: ezOBD2 diagnostic database
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