P24FB — Exhaust Aftertreatment Fuel Air Purge Valve Control Circuit High

What Does P24FB Mean?

P24FB is a diagnostic trouble code indicating: Exhaust Aftertreatment Fuel Air Purge Valve Control Circuit High. This code relates to the powertrain system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

Symptoms of P24FB

⚠️ Check Engine Light (MIL) illuminated
⚠️ Exhaust Aftertreatment Fuel Air Purge Valve reading stuck at maximum value
⚠️ Related system operating erratically or in default mode
⚠️ Reduced engine performance

Common Causes

🔍 Short to voltage in Exhaust Aftertreatment Fuel Air Purge Valve wiring harness
🔍 Corroded or water-damaged Exhaust Aftertreatment Fuel Air Purge Valve connector
🔍 Faulty Exhaust Aftertreatment Fuel Air Purge Valve outputting maximum voltage
🔍 Damaged wiring rubbing against metal components
🔍 ECM/PCM internal fault (rare)

Frequently Asked Questions

What does P24FB mean?

P24FB indicates: Exhaust Aftertreatment Fuel Air Purge Valve Control Circuit High. The vehicle's computer has detected that the Exhaust Aftertreatment Fuel Air Purge Valve is not operating within its expected parameters and stored this diagnostic trouble code.

Can I drive with code P24FB?

You can drive short distances for essential trips, but schedule a diagnosis soon. Driving with P24FB for extended periods may cause additional problems.

How much does it cost to fix P24FB?

Repair costs for P24FB 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

🔧 Inspect and repair Exhaust Aftertreatment Fuel Air Purge Valve wiring for short to voltage
🔧 Clean or replace corroded Exhaust Aftertreatment Fuel Air Purge Valve connector
🔧 Replace faulty Exhaust Aftertreatment Fuel Air Purge Valve

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.

P24FB: Exhaust Aftertreatment Fuel Air Purge Valve Control Circuit High