Code P0171Fix Soon
System Too Lean (Bank 1)
Your engine is getting too much air or not enough fuel - like trying to start a fire with wet wood. It'll run rough and use more gas.
Need This Code Diagnosed?
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Schedule Service Soon
This issue should be addressed within 1-2 weeks to prevent potential damage or increased repair costs.
Recommended Actions:
- •Schedule diagnosis within the next week
- •Monitor for worsening symptoms
- •Avoid aggressive driving
- •Keep track of any new symptoms
What This Code Means
The engine is running with too much air or not enough fuel in the mixture.
"Your engine is getting too much air or not enough fuel - like trying to start a fire with wet wood. It'll run rough and use more gas."
Common Causes
Vacuum leaks in intake system
Faulty mass air flow (MAF) sensor
Clogged fuel filter or weak fuel pump
Dirty or faulty fuel injectors
PCV valve failure
Symptoms You May Notice
Professional Diagnostic Steps
Our technicians will perform these checks:
Commonly Affects These Vehicles
Note: This code can appear in any vehicle. These are just the most common.
Repair Cost Breakdown
Why Choose Us?
- ASE Certified Technicians
- Latest Diagnostic Equipment
- Warranty on All Repairs
- Upfront, Honest Pricing
- Same Day Service Available
Frequently Asked Questions About Code P0171
Can I keep driving with code P0171?
Can drive but may cause engine damage over time - diagnose within a week
How much will it cost to fix P0171?
The repair approach depends on the specific cause and your vehicle.The most common cause (vacuum leaks in intake system) usually costs on the lower end of this range.
Will code P0171 clear itself?
While the check engine light may turn off if the condition improves temporarily, the code will remain stored in your vehicle's computer. The underlying issue still needs to be addressed to prevent the code from returning and potentially causing damage.
Is P0171 covered under warranty?
Coverage depends on your vehicle's warranty status and the specific component that failed. Extended warranties may cover this repair.
Don't Guess - Get Professional Diagnosis
Code P0171 can have multiple causes. Our diagnostic process ensures we fix the right problem the first time.