P0451

Detection Condition:

Test Procedure - Part 1:

Test Procedure - Part 2:

Step 1 - 6:

DESCRIPTION
The fuel tank pressure sensor is used to detect abnormalities in the evaporative emission control system. The ECM decides whether there is an abnormality in the evaporative emission control system based on the vapor pressure sensor signal. DTC P0450 is recorded by the ECM when the vapor pressure sensor malfunction.