P2DDA
Low Severity (Level 2)EVAP System Leak Detection Pump Performance/Stuck Off
P2DDA usually means eVAP System Leak Detection Pump Performance/Stuck Off.
Can you still drive with P2DDA?
⚠️Short-distance driving is usually OK, but have this diagnosed within a week to prevent further damage.
Typical repair cost: $10 – $800
Severity Level 2 — Low
This code indicates a minor issue that is unlikely to cause immediate driveability problems. You can typically continue driving but should have the vehicle inspected at your earliest convenience.
Common Symptoms
- Warning light or malfunction indicator related to the EVAP (evaporative emission) system is illuminated
- The EVAP (evaporative emission) system is not operating as designed
- Diagnostic trouble code (DTC) stored in module memory
- Fault may be intermittent — code may clear itself and reappear
- Reduced vehicle functionality related to the EVAP (evaporative emission) system
Possible Causes
- Faulty EVAP purge valve — most common cause, test before replacing
- Damaged or corroded wiring/connector in the EVAP (evaporative emission) system circuit
- Blown fuse or faulty relay for the EVAP (evaporative emission) system
- Poor ground connection — check and clean all related ground points
- Control module fault — rare but possible, only consider after ruling out simpler causes
Common Fixes
- Scan vehicle with a professional-grade OBD2 scanner to read all stored codes and freeze frame data — note the conditions when the code set ($5-105 at shop, free at auto parts store for basic scan)
- Visually inspect the EVAP (evaporative emission) system wiring harness and connectors — look for chafed wires, melted insulation, green corrosion, loose pins, or rodent damage (often free to check yourself, $142 diagnostic fee at shop)
- Replace EVAP purge valve if testing confirms it has failed — use OEM quality, avoid the cheapest no-name aftermarket parts that fail in a year ($10-800)
- Check and replace any blown fuses in the EVAP (evaporative emission) system fuse circuit — if fuse blows again, there's still a short that needs to be found ($4-14 for fuses)
- Perform a wiggle test on the EVAP (evaporative emission) system wiring harness while monitoring live data — see if the fault returns when you move the harness at different points ($0-121 diagnostic labor)
Estimated Repair Cost
These are estimated costs based on generic repair data. Actual costs may vary depending on your vehicle, location, and labor rates.
Frequently Asked Questions
What does P2DDA mean?
P2DDA stands for "EVAP System Leak Detection Pump Performance/Stuck Off". P2DDA usually means eVAP System Leak Detection Pump Performance/Stuck Off.
Can you drive with P2DDA?
Short-distance driving is usually OK, but have this diagnosed within a week to prevent further damage.
How much does it cost to fix P2DDA?
Repair costs for P2DDA typically range from $10 to $800, depending on your vehicle make, model, and local labor rates. Common fixes include: Scan vehicle with a professional-grade OBD2 scanner to read all stored codes and freeze frame data — note the conditions when the code set ($5-105 at shop, free at auto parts store for basic scan); Visually inspect the EVAP (evaporative emission) system wiring harness and connectors — look for chafed wires, melted insulation, green corrosion, loose pins, or rodent damage (often free to check yourself, $142 diagnostic fee at shop); Replace EVAP purge valve if testing confirms it has failed — use OEM quality, avoid the cheapest no-name aftermarket parts that fail in a year ($10-800).
Will P2DDA clear itself?
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