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Code P3164

Quick reference

P3164 at a glance

Plain-language meaning
This means that the car's computer has detected a problem with the electrical circuit that controls the fuel injector for cylinder number 6. It's like when a light bulb doesn't work because there's a problem with the wire connecting it.
Urgency
Moderate – Addressing this issue promptly can prevent further engine damage.
Difficulty
Moderate
System
Engine Performance
Tools mentioned
OBD-II scanner, Multimeter, Basic hand tools

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

Laymans terms

This means that the car's computer has detected a problem with the electrical circuit that controls the fuel injector for cylinder number 6. It's like when a light bulb doesn't work because there's a problem with the wire connecting it.

Explanation

The engine control module (ECM) monitors the electrical circuit for the high-pressure fuel injector in cylinder 6. If the voltage is too low, it triggers this code.

Technical description

The P3164 code indicates that the ECM has detected a low voltage condition in the high side circuit of the high-pressure fuel injector for cylinder 6. This can be due to wiring issues, a faulty injector, or problems with the ECM itself.

Symptoms

• Engine misfire

• Poor fuel economy

• Check Engine Light illuminated

• Rough engine idle

Common Causes

• Faulty fuel injector

• Open or shorted wiring in the injector circuit

• Bad electrical connection

• Faulty ECM

Glossary

ECM: Engine Control Module

Injector: A device that sprays fuel into the engine's cylinders

Diagnosis steps

• Use a scan tool to read the code and freeze frame data.

• Inspect the wiring and connectors for cylinder 6 injector.

• Test the injector resistance and voltage supply.

• Check ECM for proper operation.

Repair procedures

• Repair or replace any damaged wiring or connectors.

• Replace the faulty fuel injector.

• Update or replace the ECM if necessary.

Tools required

• OBD-II scanner

• Multimeter

• Basic hand tools

Estimated repair cost

$150 - $500

Difficulty level

Moderate

Commonly affected vehicles

• Ford F-150

• Chevrolet Silverado

• Toyota Camry

Preventive measures

• Regularly inspect and maintain the fuel system.

• Use quality fuel to prevent injector clogging.

• Ensure proper electrical connections.

Error code type

Engine Performance

User experience recommendations

• Do not ignore the Check Engine Light.

• Have the vehicle inspected by a professional if unsure.

• Avoid driving the vehicle if it runs rough.

Warranty information

Check with the vehicle manufacturer for warranty coverage on the fuel system components.

Historical data

This code has become more common with the use of high-pressure fuel systems in modern vehicles.

Urgency level

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

Testing conditions

• Engine at operating temperature

• Vehicle in park or neutral

Component location

The fuel injector for cylinder 6 is located on the engine, typically near the intake manifold.

FAQs

Q: Can I drive with a P3164 code?
A: It's not recommended to drive for long periods with this code as it can cause further engine damage.

Q: How serious is a P3164 code?
A: It's moderately serious. It can lead to poor engine performance and increased emissions.

Optional diagnostic gear

Tools that may help diagnose P3164

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 P3164

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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