P2494 — EGR Cooler Bypass Position Sensor Circuit Low Bank 1

What Does P2494 Mean?

P2494 is a diagnostic trouble code indicating: EGR Cooler Bypass Position Sensor Circuit Low Bank 1. This code relates to the powertrain system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

Symptoms of P2494

⚠️ Check Engine Light (MIL) illuminated
⚠️ EGR Cooler Bypass Position Sensor reading at zero or minimum value
⚠️ Related system not functioning or in fail-safe mode
⚠️ Reduced engine performance

Common Causes

🔍 Open or broken wire in EGR Cooler Bypass Position Sensor circuit
🔍 Poor ground connection at EGR Cooler Bypass Position Sensor
🔍 Faulty EGR Cooler Bypass Position Sensor with no output signal
🔍 Disconnected or loose EGR Cooler Bypass Position Sensor connector
🔍 Blown fuse in related circuit

Frequently Asked Questions

What does P2494 mean?

P2494 indicates: EGR Cooler Bypass Position Sensor Circuit Low Bank 1. The vehicle's computer has detected that the EGR Cooler Bypass Position Sensor is not operating within its expected parameters and stored this diagnostic trouble code.

Can I drive with code P2494?

You can drive short distances for essential trips, but schedule a diagnosis soon. Driving with P2494 for extended periods may cause additional problems.

How much does it cost to fix P2494?

Repair costs for P2494 typically range from $20 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

🔧 Repair broken wire or restore ground in EGR Cooler Bypass Position Sensor circuit
🔧 Clean and secure EGR Cooler Bypass Position Sensor connector and ground points
🔧 Replace failed EGR Cooler Bypass Position Sensor

1
Find your vehicle above
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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.

P2494: EGR Cooler Bypass Position Sensor Circuit Low Bank 1