P0299Medium Priority
Turbo / Super Charger Underboost
Category: Powertrain• Fuel and Air Metering (Injector Circuit)
16 articles · 3 makes affected
Root Causesfor P0299
Based on 6 owner reports
Confirmed Causes
- 1soon to have(17% of cases)
What Didn't Help
Repairs that owners tried but didn't fix the issue
go in to limp modeilluminated
Things to Check
Suggested areas to investigate based on similar cases
engine light came onengine light is not illuminatedneeds to be driven to detect if it still malfunctions
DIY Diagnostic Guide
Tools Needed
OBD Scanner
DIY Diagnostic Checklist
Based on 6 owner reports
Progress0%
Tools Needed
OBD Scanner
Step 1check: engine light came on
Step 2check: engine light is not illuminated
Owner Statistics
Based on 31,821 real owner discussions • 921 confirmed solutions
$4,911
Average Repair Cost
3%
Success Rate
24%
DIY Repairs
31,821
Data Sources
About This Data
Statistics are aggregated from real owner discussions on Reddit, automotive forums, and YouTube comments. All data is anonymized and represents actual repair experiences reported by vehicle owners.
Frequently Appears With
These codes often appear together in owner reports. Check these if you see P0299.
Based on analysis of 6 owner reports where multiple codes appeared together.
Issues by Vehicle
FORD
2014 F-150
2014 F-150 Emitting Smoke? How to Diagnose and Fix a Vacuum Leak
100 sources
2014 F-150
Why Your 2014 Ford F-150 Has a Hard Start (and How to Fix It)
100 sources
2025 F-150
2025 Ford F-150 Fuel Injector Problems? Causes & DIY Fix
111 sources
2014 F-150
Why is My 2014 F-150 Transfer Case Noisy?
100 sources
2019 Fiesta
Fix Your 2019 Fiesta Stalling After a Gas Fill-Up
100 sources
2019 Fiesta
Why Your 2019 Ford Fiesta is Whining and Shuddering (Overheating Risk)
100 sources
2019 Fiesta
Why Your 2019 Ford Fiesta Pulls to One Side (And How to Stop It)
100 sources
2019 Fiesta
How to Diagnose and Fix Turbo Underboost on Your 2019 Fiesta ST
103 sources
2019 Fiesta
Fixing the 2019 Fiesta ST P0299 Underboost Code
96 sources
2019 Fiesta
How to Fix Fiesta ST Exhaust Drone and P0299 Underboost Code
159 sources
2020 F-150
Why Your 2020 Ford F-150 Pulls When Driving (And How to Stop It)
453 sources
DODGE
2010 Charger
2010 Dodge Charger Oil Leak? How to Diagnose and Fix It
100 sources
2010 Charger
Why Your 2010 Dodge Charger Is Hard to Start (And How to Fix It)
100 sources
2016 Charger
Why Your 2016 Charger Has a Hard Start (And How to Fix It)
100 sources
2010 Charger
Why Your 2010 Charger's Check Engine Light Is On (And How to Fix It)
100 sources