AutoCodes – Buick – P1408 Buick

P1408 Buick Code - Intake Manifold Pressure Sensor Circuit

Quick Answer

P1408 Buick indicates Intake Manifold Pressure Sensor Circuit. Common causes include Faulty Intake Manifold Pressure Sensor, Intake Manifold Pressure harness is open or shorted, Intake Manifold Pressure 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
P1408 Buick indicates Intake Manifold Pressure Sensor Circuit.
Common causes
Common causes include Faulty Intake Manifold Pressure Sensor, Intake Manifold Pressure harness is open or shorted, Intake Manifold Pressure 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 3,413
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 20, 2019
πŸ’¬ Need more help? Ask Coddy for instant answers β€” it's free!

Code P1408 Buick Description

OBDII Code P1408 Buick - Intake Manifold Pressure Sensor Circuit - AutoCodes.com
P1408 Buick Code - Intake Manifold Pressure Sensor Circuit

What are the Possible Causes of the DTC P1408 Buick?

  • Faulty Intake Manifold Pressure Sensor
  • Intake Manifold Pressure harness is open or shorted
  • Intake Manifold Pressure circuit poor electrical connection

How to Fix the DTC P1408 Buick?

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 P1408 Buick 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 P1408 Buick code?

Need more information on how to fix the P1408 Buick code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1408 Buick 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 P1408 Buick Code

No Frequently Asked Questions about P1408 Buick Code found.

Discuss the causes and fixes for P1408 Buick OBDII Code

Code P1408 Buick comments

No comments found for this page.

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play