P0496 on Saturn: How to Diagnose & Fix
Evaporative Emission System High Purge Flow
1 Saturn model · 1 documented issue · $100-$350 repair
P0496 on Saturn by model: symptoms, diagnosis and fix
Auras commonly throw EVAP emissions faults, most often from a stuck-open or failing canister purge solenoid/valve (and sometimes a clogged charcoal canister or faulty fuel-tank pressure sensor). The result is a persistent check engine light and potential emissions-test failure. The gas cap is worth checking first but is usually not the cause of the P0496 flow-during-non-purge code.
Common Symptoms
- Check engine light on
- Failed emissions/smog test
- Occasional rough idle
- Fuel odor in some cases
How to Fix
Confirm the gas cap is tight, inspect EVAP vacuum lines for cracks, then replace the canister purge solenoid/valve if it is stuck open. Replace the charcoal canister or fuel-tank pressure sensor if those are at fault.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- AM Autoparts AM-3296354606 vapor-canister purge solenoid
Confirm VIN/engine and connector.
- AM Autoparts AM-2568817646 vapor-canister purge solenoid
Confirm VIN/engine and connector.
- ACDelco 214-1946 vapor-canister purge valve
Confirm VIN/engine and current GM supersession.
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Sources for this issue (2)
P0496 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P0496 mean on a Saturn?
P0496 stands for "Evaporative Emission System High Purge Flow." P0496 means the evaporative emission (EVAP) system detected high purge flow — fuel vapor is flowing into the engine when it shouldn't, typically because the purge valve is stuck or leaking open. The EVAP system captures fuel vapors in a charcoal canister and meters them into the intake through the purge valve at the correct times; unexpected vapor flow can create a vacuum in the tank and disturb fueling. Symptoms can include rough or stalling idle (especially after refueling), hard starting, or a fuel tank vacuum noise when the cap is removed. On Saturn it is documented across 1 model: Aura.
What are the most common causes of P0496?
The most common causes of P0496 are: Stuck-open or leaking EVAP purge valve/solenoid, Faulty purge valve electrical control or wiring, Damaged or disconnected purge vacuum hose, Faulty vent valve allowing improper flow, Failed fuel tank pressure sensor, Cracked or pinched EVAP lines, Carbon canister saturation or failure. The specific cause varies by vehicle.
How much does it cost to fix P0496 on a Saturn?
Published repair estimates on Saturn range from $100 to $350 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
Looking for P0496 on a different make?
View P0496 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.