P2DD9

EVAP System Leak Detection Pump Control Circuit Performance

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$22–89 (est.)

Symptoms

Check engine light is on
Increased fuel consumption
The smell of gasoline in the cabin or near the car
EVAP check error during diagnostics
Unstable engine idling

Causes

EVAP leak detection pump malfunction
Open or short circuit in the pump control circuit
Pump control relay problems
Corroded or poor electrical connections
Malfunction of the engine control unit (rare)

How to Fix

Check LDP pump circuit fuse
Check the integrity of wiring and connections in the control circuit
Test the resistance and operation of the leak detection pump
Check the control signal from the computer
Replace leak detection pump if necessary

Related codes

P0440 P0442 P0455