P219F Code - No. 4 Cylinder Air-Fuel Ratio Variation
Quick Answer
The Powertrain Control Module (PCM) detects the imbalance amount from the sizes of the 0.5-order and 1.0-order components compared to 0.8-order excitation input by the fuel injection to determine the air/fuel ratio variation between the cylinders. Common causes include Faulty fuel injector, Fuel rail clogged, Intake manifold air leak/clogged. 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
- P219F indicates No. 4 Cylinder Air-Fuel Ratio Variation.
- Common causes
- Common causes include Faulty fuel injector, Fuel rail clogged, Intake manifold air leak/clogged.
- 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 P219F Description
What are the Possible Causes of the DTC P219F?
- Faulty fuel injector
- Fuel rail clogged
- Intake manifold air leak/clogged
- Cam lift failure
- Ignition system failure
- Engine compression abnormal
- Valve clearance incorrect
How to Fix the DTC P219F?
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 P219F 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.
Need more information about the P219F code?
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Need Help with the Code?
Get the P219F code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- P219F Acura — No. 4 Cylinder Air-Fuel Ratio Variation
- P219F Honda — No. 4 Cylinder Air-Fuel Ratio Variation
- P219F Lexus — Cylinder 4 Air-Fuel Ratio Imbalance
- P219F Scion — Cylinder 4 Air-Fuel Ratio Imbalance
- P219F Toyota — Cylinder 4 Air-Fuel Ratio Imbalance
Frequently Asked Questions about P219F Code
1. What are the common symptoms of OBDII code P219F (No. 4 Cylinder Air-Fuel Ratio Variation)?
- Common symptoms include rough idling, misfires, loss of power, and poor fuel economy.
2. What are the possible causes of OBDII code P219F?
- Causes can include a faulty oxygen sensor, vacuum leaks, fuel injector issues, intake manifold leaks, or problems with the fuel system.
3. How serious is the OBDII code P219F?
- While the severity may vary, it is important to address this code promptly to prevent potential engine damage and ensure optimal performance.
4. How can I diagnose the OBDII code P219F?
- Diagnosing this code typically involves using a scan tool to monitor the air-fuel ratio sensors, checking for vacuum leaks, inspecting the fuel injectors, and testing the oxygen sensor.
5. Can I drive with the OBDII code P219F illuminated?
- It is not recommended to drive with this code illuminated as it can lead to poor engine performance and potential damage if left unaddressed.
6. How can I repair OBDII code P219F?
- Repair methods may include replacing the faulty oxygen sensor, fixing vacuum leaks, cleaning or replacing fuel injectors, repairing intake manifold leaks, or addressing fuel system issues.
7. Will resetting the OBDII code P219F fix the issue?
- Resetting the code may temporarily turn off the check engine light, but it will not resolve the underlying issue causing the code to trigger.
8. How much does it cost to repair OBDII code P219F?
- The cost of repairs can vary depending on the specific cause of the code, but it is advisable to consult a professional mechanic for an accurate diagnosis and cost estimate.
9. Can a DIY enthusiast fix OBDII code P219F?
- While some basic troubleshooting and repairs can be done by DIY enthusiasts, complex issues may require professional diagnosis and repair to ensure proper resolution.
10. What preventive measures can I take to avoid OBDII code P219F in the future?
- Regular maintenance, such as timely replacement of oxygen sensors, checking for vacuum leaks, and keeping the fuel system well-maintained, can help prevent the recurrence of this code.
Discuss the causes and fixes for P219F OBDII Code
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Estimate the repair cost to have Land Rover Discovery Sport HSE 2017 with P219F code assessed and repaired.
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The P219F code on your 2017 Land Rover Discovery Sport HSE means the computer is detecting an air-fuel ratio imbalance on cylinder 4. This can be caused by things like a bad fuel injector, intake air leak near that cylinder, a weak ignition coil or plug, or even a problem with the O2 sensor reading the mixture.
Typical Repair Costs
Because the cause can vary, the cost depends on what’s found during diagnosis:
- Diagnostic scan and testing: \$120–\$180 at most shops or dealerships.
- Spark plug or coil replacement (if ignition is the issue): \$150–\$400.
- Fuel injector replacement: \$400–\$700 for one injector, more if a set is recommended.
- Intake manifold gasket or vacuum leak repair: \$250–\$500.
- Oxygen sensor replacement (less common for this code but possible): \$250–\$400.
What to Expect
Shops will usually start with scan data, a balance test, and sometimes a smoke test for intake leaks. Once they confirm if it’s fuel, spark, or air imbalance, they’ll recommend the repair. In most cases, total cost ends up somewhere around \$400–\$700, but it can go higher if injectors or multiple parts need replacement.
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