LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2020 >> Malibu LS >> Repair and Diagnosis >> External Pages >> Different car >> Section 51 (Engine Controls And Fuel - 1.8L (LKN) - DTC P0446-DTC P31BF And Symptoms) >> Diagnostic Information and Procedures >> DTC P1463 >> Circuit/System Description

Circuit/System Description

WARNING: This page is about a different car, the 2019 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.

The EVAP system uses a EVAP leak detection pump to test for system leaks. The EVAP leak detection pump assembly consists of the following components:

This test determines if there is a restriction between the EVAP System Leak Detection Pump and fuel tank. A restriction will cause the vacuum level, as measured by the EVAP System Leak Detection Pump pressure sensor, to quickly increase beyond a calibration threshold in a short period of time if, there are no other leaks.

scientia non olet · About LEMON Manuals