P1133 Lincoln Code - Bank 1 Fuel Control Shifted Lean
Quick Answer
P1133 Lincoln indicates Bank 1 Fuel Control Shifted Lean. Common causes include Faulty HO2S11, Faulty Mass Air Flow (MAF) sensor, Fuel system malfunction. 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
- P1133 Lincoln indicates Bank 1 Fuel Control Shifted Lean.
- Common causes
- Common causes include Faulty HO2S11, Faulty Mass Air Flow (MAF) sensor, Fuel system malfunction.
- 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.
Code P1133 Lincoln Description
What are the Possible Causes of the DTC P1133 Lincoln?
- Faulty HO2S11
- Faulty Mass Air Flow (MAF) sensor
- Fuel system malfunction
- HO2S11 harness is open or shorted
- HO2S11 circuit poor electrical connection
How to Fix the DTC P1133 Lincoln?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1133 Lincoln code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P1133 Lincoln Code
1. What does the OBDII code P1133 on a Lincoln mean?
P1133 indicates that the oxygen sensor on Bank 1 is detecting a lean fuel mixture that is out of the normal range for proper fuel control.
2. What are the common symptoms of the P1133 code on a Lincoln?
Symptoms may include reduced engine performance, poor fuel economy, rough idling, and an illuminated check engine light.
3. What causes the P1133 code on a Lincoln?
Common causes include a faulty oxygen sensor, vacuum leaks, exhaust leaks near the sensor, fuel delivery issues, or a malfunctioning mass airflow (MAF) sensor.
4. Can a dirty or faulty mass airflow sensor cause the P1133 code?
Yes, a dirty or malfunctioning MAF sensor can cause incorrect air-fuel ratio readings, leading to a lean condition and triggering the P1133 code.
5. How do you diagnose the P1133 code on a Lincoln?
Diagnosis typically involves checking for exhaust or vacuum leaks, inspecting the oxygen sensor and wiring, and testing the fuel delivery system and MAF sensor.
6. Should I replace the oxygen sensor immediately if I get the P1133 code?
Not necessarily. The oxygen sensor may not be the root cause. Diagnose potential issues like vacuum leaks, exhaust leaks, or other sensors before replacing the O2 sensor.
7. Can a clogged fuel injector trigger the P1133 code?
Yes, a clogged or malfunctioning fuel injector can cause a lean condition, which may result in the P1133 code being set.
8. Is it safe to drive a Lincoln with the P1133 code active?
While it may be safe to drive short-term, prolonged driving with a lean condition can damage the engine or catalytic converter, so prompt repair is recommended.
9. How much does it cost to fix the P1133 code on a Lincoln?
Repair costs vary depending on the cause. Oxygen sensor replacement can range from $150 to $300, while fixing vacuum leaks or fuel system issues may cost more.
10. Can a leaking exhaust manifold cause the P1133 code?
Yes, an exhaust manifold leak near the oxygen sensor can allow extra air to enter, leading to false lean readings and triggering the P1133 code.
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