AutoCodes – Dodge – P2174 Dodge

P2174 Dodge Code - Low Airflow/Restriction Detected Instantaneous Accumulation

Quick Answer

The Diagnostic Trouble Code (DTC) will set when the Powertrain Control Module (PCM) calculated Manifold Absolute Pressure (MAP) Sensor value is greater than the actual MAP value plus an offset value. Common causes include Restricted air inlet, Faulty Manifold Absolute Pressure (MAP) Sensor, Manifold Absolute Pressure Sensor harness is open or shorted. 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: P2174 Dodge indicates Low Airflow/Restriction Detected Instantaneous Accumulation.
Common causes: Common causes include Restricted air inlet, Faulty Manifold Absolute Pressure (MAP) Sensor, Manifold Absolute Pressure Sensor harness is open or shorted.
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 22,292

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 03, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P2174 Dodge Description

OBDII Code P2174 Dodge - Low Airflow/Restriction Detected Instantaneous Accumulation - AutoCodes.com — P2174 Dodge Code - Low Airflow/Restriction Detected Instantaneous Accumulation

What does this mean?

What are the Possible Causes of the DTC P2174 Dodge?

Restricted air inlet
Faulty Manifold Absolute Pressure (MAP) Sensor
Manifold Absolute Pressure Sensor harness is open or shorted
Manifold Absolute Pressure Sensor circuit poor electrical connection
Faulty Throttle Position (TP) Sensor

How to Fix the DTC P2174 Dodge?

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 does this mean?

Code Tech Notes

There is a Factory Service Bulletin for the following Dodge models:
2004 Dodge Ram Truck
2004 Dodge Durango
Dodge Factory Service Bulletin OBDII Code P2174

The bulletin suggests starting by cleaning the throttle body and clearing the code

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2174 Dodge 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.

Need more information about the P2174 Dodge code?

Need more information on how to fix the P2174 Dodge code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2174 Dodge code diagnosed by a professional: Find a repair shop in your area

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.

Frequently Asked Questions about P2174 Dodge Code

1. What are the common symptoms of OBDII code P2174 in a Dodge vehicle?

- Common symptoms of P2174 include reduced engine power, rough idling, stalling, and poor acceleration.

2. What does the OBDII code P2174 in a Dodge indicate?

- P2174 indicates that the Engine Control Module (ECM) has detected low airflow or a restriction in the intake system.

3. What are the possible causes of OBDII code P2174 in a Dodge?

- The code P2174 in a Dodge can be triggered by a dirty air filter, a clogged air intake, a faulty Mass Air Flow (MAF) sensor, or a vacuum leak.

4. How can I diagnose the OBDII code P2174 in my Dodge?

- Diagnosing P2174 involves checking the air filter, inspecting the air intake system for obstructions, testing the MAF sensor, and checking for any vacuum leaks.

5. Can a dirty air filter cause the OBDII code P2174 in a Dodge?

- Yes, a dirty air filter can restrict airflow and trigger code P2174 in a Dodge by causing low airflow or a restriction in the intake system.

6. How can I repair the OBDII code P2174 in my Dodge?

- Repairing P2174 may involve replacing the air filter, cleaning or replacing the MAF sensor, fixing any air intake obstructions, and repairing any vacuum leaks.

7. Is it safe to drive my Dodge with the OBDII code P2174 active?

- It is not recommended to drive your Dodge with code P2174 active as it can lead to engine performance issues and potential stalling.

8. Can a faulty MAF sensor trigger the OBDII code P2174 in a Dodge?

- Yes, a faulty MAF sensor that is not accurately measuring airflow can trigger code P2174 by causing the ECM to detect low airflow or a restriction.

9. Will resetting the OBDII code P2174 in my Dodge make it go away permanently?

- Resetting the code may temporarily turn off the Check Engine Light, but if the underlying issue causing P2174 is not fixed, the code is likely to return.

10. How can I prevent the OBDII code P2174 from reoccurring in my Dodge?

- To prevent code P2174 from reoccurring, regularly inspect and replace the air filter, maintain the air intake system, and address any issues promptly to ensure proper airflow.