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Code P3248

Quick reference

P3248 at a glance

Plain-language meaning
This code means that the car's computer has noticed that the engine power on one side of the engine is very different from the other side. It's like if one side of a see-saw is much heavier than the other.
Urgency
Moderate – It should be addressed soon to prevent further engine imbalance.
Difficulty
Moderate
System
Engine Performance
Tools mentioned
OBD-II scanner, Multimeter, Compression tester

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

Laymans terms

This code means that the car's computer has noticed that the engine power on one side of the engine is very different from the other side. It's like if one side of a see-saw is much heavier than the other.

Explanation

The engine control module (ECM) monitors the torque produced by each bank of cylinders. If the difference in torque between the banks exceeds a certain threshold, it triggers this code.

Technical description

The ECM compares the calculated torque output of each bank of cylinders in a V-type engine. If the deviation between the two banks is too large, indicating an imbalance in power output, the ECM sets the P3248 code.

Symptoms

• Check Engine Light is on

• Reduced engine performance

• Rough idling

Common Causes

• Faulty fuel injector

• Ignition system issues

• Engine mechanical problems

Glossary

ECM: Engine Control Module

Torque: A measure of the rotational force produced by the engine

Diagnosis steps

• Use an OBD-II scanner to confirm the code.

• Inspect fuel injectors and ignition components.

• Perform a compression test on the engine.

Repair procedures

• Replace faulty fuel injectors.

• Repair or replace ignition components.

• Address any mechanical engine issues.

Tools required

• OBD-II scanner

• Multimeter

• Compression tester

Estimated repair cost

$200 - $1000

Difficulty level

Moderate

Commonly affected vehicles

• Audi A6

• Volkswagen Passat

• BMW 5 Series

Preventive measures

• Regular engine maintenance

• Timely replacement of spark plugs

• Use of quality fuel

Error code type

Engine Performance

User experience recommendations

• Do not ignore the Check Engine Light.

• Get the vehicle diagnosed by a professional.

• Regularly maintain your vehicle to prevent such issues.

Warranty information

Check with the vehicle manufacturer for warranty coverage on engine components.

Historical data

This code is often associated with V-type engines where torque balance between banks is critical.

Urgency level

Moderate – It should be addressed soon to prevent further engine imbalance.

Testing conditions

• Engine at operating temperature

• Vehicle in a safe, stationary position

Component location

The components related to this code are located in the engine bay, specifically around the fuel and ignition systems.

FAQs

Q: Can I drive with a P3248 code?
A: It's not recommended to drive for long with this code as it can lead to further engine issues.

Q: Is a P3248 code serious?
A: Yes, it indicates an imbalance in engine performance that should be addressed to avoid damage.

Optional diagnostic gear

Tools that may help diagnose P3248

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.

Fitment matters

Commonly referenced parts for P3248

NGK Spark Plugs product illustration

Fitment Required · Vehicle-fitment part

NGK Spark Plugs

Commonly relevant for misfire, ignition-efficiency, and some drivability-related repairs.

Misfire and ignition-related faults commonly involve spark plugs as part of the repair path.

Check the correct plug type, gap, and engine application for your vehicle.

View options on Amazon
Delphi Ignition Coil product illustration

Fitment Required · Vehicle-fitment part

Delphi Ignition Coil

Relevant when the fault points toward ignition-coil performance or cylinder-specific ignition issues.

Some ignition faults involve coil performance or cylinder-specific coil problems.

Match the coil to your engine and confirm the failed component before ordering.

View options on Amazon

These parts may be related to this fault category, but a code by itself does not confirm exact fitment or guarantee that replacing a part will solve the problem.

Source: ezOBD2 diagnostic database
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