What Does P1468 Mean?
The EVAP purge solenoid valve circuit has a short to ground, meaning the electrical circuit is grounding out before reaching the valve. This prevents proper control of fuel vapor flow from the charcoal canister to the engine.
Common Causes
45%
Damaged or chafed wiring harness creating ground short
30%
Failed purge solenoid valve with internal short to ground
15%
Corroded or damaged connector terminals causing short circuit
10%
Pinched wiring during previous repair work
Diagnostic Steps
1
Step 1: Disconnect purge solenoid valve connector and check resistance between solenoid terminals (typically 20-40 ohms)
2
Step 2: Check for continuity between solenoid connector terminal and chassis ground with solenoid disconnected
3
Step 3: Inspect wiring harness from ECM to purge valve for damage, chafing, or pinch points
4
Step 4: Check connector terminals for corrosion, bent pins, or moisture intrusion
5
Step 5: If wiring tests good, replace purge solenoid valve and retest
Estimated Repair Cost
$100 - $350
Parts + labor, varies by vehicle and location
The EVAP purge solenoid valve circuit has a short to ground, meaning the electrical circuit is grounding out before reaching the valve. This prevents proper control of fuel vapor flow from the charcoal canister to the engine.
The most common cause of P1468 (EVAP Canister Purge Solenoid Valve Short Circuit to Ground) is: Damaged or chafed wiring harness creating ground short
Typical repair costs for P1468 range from $100 to $350, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Vehicle is safe to drive. May experience rough idle or slightly reduced fuel economy. Will cause emissions test failure.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P1468 to identify the root cause.
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Quick Info
Category
Powertrain
System
Evaporative Emissions System
Difficulty
Type
Manufacturer
Recommended Tools
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