P0047: Turbocharger/Supercharger Boost Control A Circuit Low
What Does P0047 Mean?
P0047 is a diagnostic trouble code indicating: Turbocharger/Supercharger Boost Control A Circuit Low. This code relates to the fuel and air metering system. It has been reported in NHTSA complaints across 1 different vehicle models.
Symptoms of P0047
- ⚠️ Vehicle won't start
Common Causes
- 🔍 Worn or fouled spark plugs
Real Owner Reports
From NHTSA complaint database — actual owner descriptions.
"JUST GOT THIS FORD VEHICLE A COUPLE MONTHS AGO AND FOR SOME REASON MY CAR WOULDN'T START. I RAN A DIAGNOSTIC AND HAD NUMEROUS CODES P0300, P0301, P0302, P0303, P0304, P0030, C0014, P0047, P0141, AND A FEW OTHERS. I LOOKED FOR LOOSE WIRES, CHECKED FUSES, PLUGS ETC. THE ONLY THING AT THIS POINT I NOTI"
— Ford Fusion owner, 03/17/2021
Source: NHTSA Complaints Database
Most Reported Vehicles for P0047
Based on NHTSA owner complaint data.
| # | Vehicle | Reports |
|---|---|---|
| 1 | FORD FUSION |
Frequently Asked Questions
Can I drive with this code?
Will this code cause my car to fail emissions?
How much does it typically cost to fix?
What To Do Next
Possible Fixes
- 🔧 Have the code scanned with a professional-grade scanner to read freeze frame data
- 🔧 Clean or replace the mass air flow (MAF) sensor; check for vacuum leaks
- 🔧 If DIY repair isn't feasible, get a diagnostic from a trusted mechanic ($50-150)
-
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.