Toyota Camry 1997-2001: How to Replace Vapor Pressure Sensor

If your Camry has failed and its most recent emission's test as well as the trouble code (P0450) indicates that the vapor pressure sensor is the cause, here are the steps to replace it yourself.

By Anthony Kaw - August 5, 2015
Contributors: RepairSolutions

This article applies to the 4th generation Toyota Camry (1997-2001).

Your Toyota Camry has an evaporative emission control system (EVAP) that monitors and prevents gas vapors from leaking out of the fuel tank as well as fuel delivery system. As part of this "vapor control system," the vapor pressure sensor signals to your car's engine control module (ECM) whether or not there are irregularities in fuel delivery pressure. Since the ECM cannot adapt to and compensate for the problem, a trouble code will pop up and your only option for repair would be to replace the vapor pressure sensor and correct the leak in the EVAP system. In this article, you will learn how to replace the vapor pressure sensor in your 4th generation Toyota Camry.

Figure 1. Factory Toyota Camry vapor pressure sensor.

Materials Needed

Replacement vapor pressure sensor (part # 89420-06060)
Flat head screwdriver

Step 1 – Remove vapor pressure sensor

Unplug the wire harness connector from the vapor pressure sensor. It is located on the firewall, above and to the left of the brake booster.
Remove the vacuum line connected to the sensor.
Use a flat head screwdriver to pry out the sensor from the bracket.