All codes › P0496
P0496: Evaporative Emission System High Purge Flow
What it means
Too much vapor is being purged into the engine when it shouldn't be, often noticed as hard starts after refueling.
Severity: Low–Medium Hard starts after refueling; can flood the engine with vapor.
Common causes
- Purge valve stuck open (most common)
- Faulty EVAP pressure sensor
- Wiring short keeping valve open
- Overfilled tank damaging canister
Most common causes first. Exact causes vary by make, model and engine.
Can I fix it myself?
Often DIY. A stuck-open purge valve is the usual culprit.
Repair cost
SEEDED ESTIMATE Roughly $60–$350
Most likely repair: evap purge/vent valve. Diagnosis fees, taxes and other causes are not included.
| Line | Low | High | Basis |
|---|---|---|---|
| EVAP purge/vent valve | $34 | $190 | Typical listed retail range, source |
| Labor 0.3–1 hr | $30 | $160 | $100–$160/hr, shop survey |
⚠️ This is an editorial placeholder range for this type of repair. It is not based on real invoices or licensed pricing data yet. Real ranges will appear here once enough reader invoices for P0496 are verified.
Verified reader invoices for P0496: 0. Share your repair bill to help build real costs.
Tools that can read P0496
- ScanFixAI: Pro $29.99/mo or $249.99/yr
- OBDAI: Annual PRO bundle $299
- BlueDriver Pro Next-Gen: $119.95 list ($99.95 sale seen)
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