P027B — Fuel Pump Module B Control Circuit Range/Performance

What Does P027B Mean?

P027B is a diagnostic trouble code indicating: Fuel Pump Module B Control Circuit Range/Performance. This code relates to the fuel injection system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

Symptoms of P027B

⚠️ Check Engine Light (MIL) illuminated
⚠️ Fuel Pump Module B not operating within expected parameters
⚠️ Reduced efficiency or performance of related system
⚠️ Engine hesitation or stumble

Common Causes

🔍 Fuel Pump Module B degraded or contaminated
🔍 Mechanical wear or binding in Fuel Pump Module B
🔍 Incorrect Fuel Pump Module B installed (wrong part number)
🔍 Related system mechanical issue affecting Fuel Pump Module B readings

Frequently Asked Questions

What does P027B mean?

P027B indicates: Fuel Pump Module B Control Circuit Range/Performance. The vehicle's computer has detected that the Fuel Pump Module B is not operating within its expected parameters and stored this diagnostic trouble code.

Can I drive with code P027B?

You can drive short distances for essential trips, but schedule a diagnosis soon. Driving with P027B for extended periods may cause additional problems.

How much does it cost to fix P027B?

Repair costs for P027B typically range from $50 to $250, 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 clean Fuel Pump Module B
🔧 Replace degraded Fuel Pump Module B
🔧 Check for related mechanical issues affecting readings

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.

P027B: Fuel Pump Module B Control Circuit Range/Performance