P1492 — EVAP Canister Purge Control Solenoid Valve Circuit

What Does P1492 Mean?

P1492 is a manufacturer-specific diagnostic trouble code: EVAP Canister Purge Control Solenoid Valve Circuit. This code applies to NISSAN, DODGE, JEEP, PLYMOUTH, PONTIAC vehicles. Unlike generic OBD-II codes, manufacturer-specific codes are defined by the vehicle maker and may only apply to certain makes and models.

Symptoms of P1492

⚠️ Check Engine Light (MIL) illuminated
⚠️ Erratic EVAP Canister Purge Control Solenoid Valve readings
⚠️ Related system operating intermittently
⚠️ Reduced engine performance

Common Causes

🔍 Wiring issue in EVAP Canister Purge Control Solenoid Valve circuit (damaged, chafed, or corroded)
🔍 Faulty EVAP Canister Purge Control Solenoid Valve connector or terminal
🔍 Failed EVAP Canister Purge Control Solenoid Valve
🔍 ECM/PCM connection issue

Frequently Asked Questions

What does P1492 mean?

P1492 indicates: EVAP Canister Purge Control Solenoid Valve Circuit. The vehicle's computer has detected that the EVAP Canister Purge Control Solenoid Valve is not operating within its expected parameters and stored this diagnostic trouble code.

Can I drive with code P1492?

You can drive short distances for essential trips, but schedule a diagnosis soon. Driving with P1492 for extended periods may cause additional problems.

How much does it cost to fix P1492?

Repair costs for P1492 typically range from $80 to $300, depending on the root cause. Simple wiring or connector repairs are on the lower end, while component replacement costs more. A proper diagnosis ($80–$150 at most shops) will identify the exact cause before committing to expensive parts.

What To Do Next

Possible Fixes

🔧 Inspect and repair EVAP Canister Purge Control Solenoid Valve wiring and connectors
🔧 Replace faulty EVAP Canister Purge Control Solenoid Valve

1
Find your vehicle above
Click your make and model for real owner reports and common causes specific to your vehicle.
2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
3
Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

P1492: EVAP Canister Purge Control Solenoid Valve Circuit