OBD-II code · Powertrain (generic, extended)
P2DD9 EVAP System Leak Detection Pump Control Circuit Performance
The EVAP leak detection pump control circuit reports a performance condition. Pump response or current draw outside calibration.
Is it safe to drive with P2DD9?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyPump output degraded
- PossibleHigh-resistance contact
Symptoms
- Check engine light on
- Possible smell of fuel near tank or engine bay
- Failed emissions inspection
- Loose-cap warning may appear
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–2 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Evap Leak Detection Pump, Wiring Harness, Ecm
Related codes
- P2DD6Fuel Injection Quantity B Higher Than Expected
- P2DD7Cold Start Fuel Injection Quantity B Lower Than Expected
- P2DD8Cold Start Fuel Injection Quantity B Higher Than Expected
- P2DDAEVAP System Leak Detection Pump Performance/Stuck Off
- P2DDBEVAP System Leak Detection Pump Stuck On
- P2DDCFuel Injection Quantity C Lower Than Expected
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.