Acura Service Bulletin: Troubleshooting DTC P1456 and P1457 (1996-2004 Models)

Troubleshooting Procedure

This bulletin provides troubleshooting procedures for DTC P1456 and P1457 on various Acura models from 1996 to 2004.

Procedure A (2001-04 MDX, 1997-05 NSX, 1996-04 RL, and 1999-03 TL)

Check the FTP sensor value, fuel cap, and EVAP system components to identify and repair leaks.

Procedure B (1997-03 CL and 1996-01 Integra)

Similar to Procedure A, but with specific steps for these models.

Important: These procedures should only be performed by skilled technicians with proper tools and training.

Manual:

Introduction This Owner’s Guide is designed to help you quickly get acquainted with your 2015

May 18, 2024

Introduction The Acura Integra combines innovative technology with dazzling performance and refinement. It features a

May 16, 2024

Important Safety Precautions Proper installation is essential to experience the benefits of this system. Only

July 7, 2024

Introduction This guide is prepared to assist emergency response professionals in identifying and safely responding

June 11, 2024

The first two pages of this manual introduce the Acura NSX, a sports car that

September 26, 2024

Safety Information This vehicle is equipped with an Event Data Recorder (EDR) that records data

May 14, 2024

Troubleshooting Procedure