Detection Condition

PCM measures pump load current (EVAP line pressure) when a specified period has passed after EVAP system is sealed and ignition is turned off. If load does not reach reference load value or rate of load increase is lower than specified within a specified period, PCM determines that EVAP system has a very small leak.

Monitoring Condition

• Ignition off.
• IAT: 50-140°F (10-60°C).
• Battery voltage: 11-14.5 volts.
• Atmospheric pressure: 21.33 in. Hg (71.8 kPa) or more.
• Fuel tank level: 15-85 percent.

This is an intermittent monitor (Evaporative leak monitor). MIL illuminates if PCM detects malfunction condition in two consecutive drive cycles. Diagnostic Monitoring Test Results and Pending Code are stored if PCM detects malfunction condition during first drive cycle. Freeze Frame Data is available and DTC is stored in PCM memory.