LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2003 >> Matrix Base, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 103 (Engine Control System Self Diagnostics) >> Diagnostic Tests >> DTC P0450: EVAP Emission Control System Pressure Sensor Malfunction &/Or P0451: EVAP Emission Control System Pressure Sensor Range/Performance >> Possible Causes
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Possible Causes

WARNING: This page is about a different car, the 2003 Toyota MR2. However, it is still accessible from the selected car via links, so may be relevant.

DTC is set if vapor pressure sensor malfunctions. Possible causes are: