P28F1 — Engine Disconnect Clutch Pressure Sensor Circuit

What Does P28F1 Mean?

P28F1 is a diagnostic trouble code indicating: Engine Disconnect Clutch Pressure Sensor Circuit. This code relates to the powertrain system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

Symptoms of P28F1

⚠️ Check Engine Light (MIL) illuminated
⚠️ Erratic Engine Disconnect Clutch Pressure Sensor readings
⚠️ Related system operating intermittently
⚠️ Reduced engine performance

Common Causes

🔍 Wiring issue in Engine Disconnect Clutch Pressure Sensor circuit (damaged, chafed, or corroded)
🔍 Faulty Engine Disconnect Clutch Pressure Sensor connector or terminal
🔍 Failed Engine Disconnect Clutch Pressure Sensor
🔍 ECM/PCM connection issue

Frequently Asked Questions

What does P28F1 mean?

P28F1 indicates: Engine Disconnect Clutch Pressure Sensor Circuit. The vehicle's computer has detected that the Engine Disconnect Clutch Pressure Sensor is not operating within its expected parameters and stored this diagnostic trouble code.

Can I drive with code P28F1?

You can drive short distances for essential trips, but schedule a diagnosis soon. Driving with P28F1 for extended periods may cause additional problems.

How much does it cost to fix P28F1?

Repair costs for P28F1 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 Engine Disconnect Clutch Pressure Sensor wiring and connectors
🔧 Replace faulty Engine Disconnect Clutch Pressure 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.

P28F1: Engine Disconnect Clutch Pressure Sensor Circuit