P1171 Buick Code - Fuel System Lean During Acceleration
Quick Answer
The P1171 Buick code indicates that the fuel system is running lean during acceleration. Common causes include Faulty fuel pump, Clogged fuel injector, Vacuum leak in the intake system. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1171 Buick indicates Fuel System Lean During Acceleration.
- Common causes
- Common causes include Faulty fuel pump, Clogged fuel injector, Vacuum leak in the intake system.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code P1171 Buick Description
The P1171 Buick code indicates that the fuel system is running lean during acceleration. This means that there is an imbalance in the air-fuel mixture, with more air than fuel being delivered to the engine during acceleration. This can lead to a variety of performance issues and potential long-term effects if not addressed promptly.
Common Causes of P1171 Buick
- Faulty fuel pump
- Clogged fuel injector
- Vacuum leak in the intake system
- Dirty or clogged fuel filter
- Faulty oxygen sensor
Symptoms of P1171 Buick
- Hesitation or stumbling during acceleration
- Lack of power and responsiveness
- Engine running hotter than normal
- Potential damage to the catalytic converter
- Check Engine Light illuminated on the dashboard
How to Fix P1171 Buick
- Diagnose the root cause of the lean condition using a diagnostic scanner to read the code and identify the specific issue.
- Inspect the fuel pump, fuel injectors, and fuel filter for any signs of damage or clogging. Replace any components as necessary.
- Check for vacuum leaks in the intake system and repair or replace any damaged hoses or gaskets.
- Test the oxygen sensor to ensure it is functioning properly. Replace if necessary.
- Clear the diagnostic code and reset the engine control module to see if the issue has been resolved.
Cost to Fix P1171 Buick
The cost of repairing a P1171 Buick code can vary depending on the specific cause of the lean condition and the labor rates in your area. On average, you can expect to pay anywhere from $200 to $500 for parts and labor. Keep in mind that diagnostic time and labor rates at auto repair shops can vary, so it's best to get a few quotes from different shops to find the best price.
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