P1443 — Evaporative Emission Control System Control Valve

What Does P1443 Mean?

P1443 is a diagnostic trouble code indicating: Evaporative Emission Control System Control Valve. This code relates to the manufacturer-specific powertrain system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

Symptoms of P1443

⚠️ Check Engine Light (MIL) illuminated
⚠️ Evaporative Emission Control System Control Valve not functioning as expected
⚠️ Related system may be in fail-safe mode
⚠️ Reduced engine performance

Common Causes

🔍 Faulty Evaporative Emission Control System Control Valve
🔍 Wiring or connector issue in Evaporative Emission Control System Control Valve circuit
🔍 Related mechanical or electrical fault
🔍 ECM/PCM issue (rare)

Frequently Asked Questions

What does P1443 mean?

P1443 indicates: Evaporative Emission Control System Control Valve. The vehicle's computer has detected that the Evaporative Emission Control System Control Valve is not operating within its expected parameters and stored this diagnostic trouble code.

Can I drive with code P1443?

You can drive short distances for essential trips, but schedule a diagnosis soon. Driving with P1443 for extended periods may cause additional problems.

How much does it cost to fix P1443?

Repair costs for P1443 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 Evaporative Emission Control System Control Valve and related wiring
🔧 Replace faulty Evaporative Emission Control System Control 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.

P1443: Evaporative Emission Control System Control Valve