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Code P144A

Quick reference

P144A at a glance

Plain-language meaning
This code means that the car's computer is noticing a problem with how the fuel level is being measured. It's like when you think your toy box is full, but it's not, and you can't figure out why.
Urgency
Moderate – It is advisable to address this issue to ensure accurate fuel readings and avoid potential breakdowns.
Difficulty
Moderate
System
Sensor Issue
Tools mentioned
OBD-II scanner, Multimeter, Basic hand tools

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

Laymans terms

This code means that the car's computer is noticing a problem with how the fuel level is being measured. It's like when you think your toy box is full, but it's not, and you can't figure out why.

Explanation

The vehicle's computer system detects a discrepancy between the fuel level sensor reading and the expected fuel level based on tank capacity.

Technical description

The P144A code is triggered when the Powertrain Control Module (PCM) detects a mismatch between the actual fuel level and the expected fuel level calculated from the fuel tank's capacity. This could be due to a faulty fuel level sensor or issues in the fuel tank itself.

Symptoms

• Inaccurate fuel gauge reading

• Check Engine Light illuminated

• Possible fuel system performance issues

Common Causes

• Faulty fuel level sensor

• Wiring issues in the fuel level sensor circuit

• Fuel tank deformation or damage

Glossary

PCM: Powertrain Control Module, the vehicle's computer responsible for managing the engine and transmission.

OBD-II: On-Board Diagnostics II, a standardized system for self-diagnostics and reporting in vehicles.

Diagnosis steps

• Check for any loose or damaged wiring in the fuel level sensor circuit.

• Inspect the fuel tank for any signs of damage or deformation.

• Test the fuel level sensor for proper operation.

Repair procedures

• Replace the faulty fuel level sensor.

• Repair or replace damaged wiring.

• Repair or replace the fuel tank if necessary.

Tools required

• OBD-II scanner

• Multimeter

• Basic hand tools

Estimated repair cost

$150 - $600

Difficulty level

Moderate

Commonly affected vehicles

• Ford F-150

• Chevrolet Silverado

• Toyota Camry

Preventive measures

• Regularly inspect the fuel system components.

• Keep the fuel tank clean and free of contaminants.

• Ensure proper installation of fuel system components.

Error code type

Sensor Issue

User experience recommendations

• Monitor fuel level manually until the issue is resolved.

• Avoid running the vehicle on low fuel to prevent further complications.

Warranty information

Check with your vehicle's manufacturer for warranty coverage on fuel system components.

Historical data

This code has been associated with issues in vehicles with aging fuel systems or those that have experienced physical damage to the fuel tank.

Urgency level

Moderate – It is advisable to address this issue to ensure accurate fuel readings and avoid potential breakdowns.

Testing conditions

• Vehicle must be on a level surface.

• Fuel tank should be at least half full for accurate testing.

Component location

The fuel level sensor is typically located inside the fuel tank, attached to the fuel pump assembly.

FAQs

Q: What happens if I ignore the P144A code?
A: Ignoring this code can lead to inaccurate fuel readings, which might cause you to run out of fuel unexpectedly.

Q: Can I drive my car with the P144A code?
A: While the car may still be drivable, it's best to address the issue to ensure accurate fuel level readings.

Optional diagnostic gear

Tools that may help diagnose P144A

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.

View on Amazon
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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