AutoCodes – Generic – P1334

P1334 Code - EGR Throttle Position Sensor Minimum Stop Performance

Quick Answer

The Exhaust Gas Recirculation (EGR) Throttle Position (EGRTP) Actuator modifies the air flow into the intake manifold by controlling a throttle plate within the throttle body. Common causes include Faulty Exhaust Gas Recirculation (EGR) Throttle Position (EGRTP) Actuator, EGRTP Actuator harness is open or shorted, EGRTP Actuator circuit poor electrical connection. 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: P1334 indicates EGR Throttle Position Sensor Minimum Stop Performance.
Common causes: Common causes include Faulty Exhaust Gas Recirculation (EGR) Throttle Position (EGRTP) Actuator, EGRTP Actuator harness is open or shorted, EGRTP Actuator circuit poor electrical connection.
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.

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Code Popularity 10,741

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 Aug 21, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P1334 Description

The Exhaust Gas Recirculation (EGR) Throttle Position (EGRTP) Actuator modifies the air flow into the intake manifold by controlling a throttle plate within the throttle body. A Pulse Width Modulated (PWM) signal from the Powertrain Control Module (PCM) is used to control the rotary motion of the EGRTP Actuator. The throttle plate position is determined by an input signal from the EGR Throttle Position (EGRTP) sensor.
The EGRTP sensor is a rotary position sensor. A 5-volt reference voltage supplied by the PCM, is utilized by the sensor to provide an input signal that is proportional to the angle of the throttle plate.
The Diagnostic Trouble Code (DTC) is set when the EGR Throttle Position closed position voltage is less than 3.83 volts or when the EGR Throttle Position open position is greater than 0.93 volts at initial Key on.

OBDII Code P1334 - EGR Throttle Position Sensor Minimum Stop Performance - AutoCodes.com — P1334 Code - EGR Throttle Position Sensor Minimum Stop Performance

What does this mean?

What are the Possible Causes of the DTC P1334?

Faulty Exhaust Gas Recirculation (EGR) Throttle Position (EGRTP) Actuator
EGRTP Actuator harness is open or shorted
EGRTP Actuator circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P1334?

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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1334 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.

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Information for Specific Makes

P1334 Ford — EGR Throttle Position Sensor Minimum Stop Performance
P1334 Hyundai — #4 MF Signal Line Short
P1334 Saab — Ignition Coil Knock Detection Cylinder 3 & 4

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.