P2407

EVAP System Leak Detection Pump Sense Circuit Intermittent/Erratic

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–89 (est.)

Symptoms

Check Engine Light Is On
Increased fuel consumption
Smell of gasoline in the cabin
Problems starting the engine
Unstable idling

Causes

Open or short circuit in leak detection pump circuit
Poor contact in the pump or control unit connectors
Leak detection pump malfunction
Wiring harness damage
Problems with the engine control unit

How to Fix

Check the integrity of the leak detection pump wiring and connectors.
Check resistance and voltage at leak detection pump
Replace leak detection pump if necessary
Check and clean contacts in connectors
Scan the control unit for other errors

Related codes

P2405 P2406 P2419