P120C Code - Secondary Fuel Injector Bank 2 Insufficient Flow
Quick Answer
The diagnostic trouble code P120C indicates a problem with the secondary fuel injector in bank 2 of the vehicle's engine. Common causes include Clogged fuel injector, Faulty fuel injector, Fuel pressure regulator issues. 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
- P120C indicates Secondary Fuel Injector Bank 2 Insufficient Flow .
- Common causes
- Common causes include Clogged fuel injector, Faulty fuel injector, Fuel pressure regulator issues.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P120C Description
The diagnostic trouble code P120C indicates a problem with the secondary fuel injector in bank 2 of the vehicle's engine. This specific code signifies that there is insufficient flow from the fuel injector, which can lead to a variety of performance issues in the vehicle. The fuel injector is responsible for delivering the precise amount of fuel into the combustion chamber for proper combustion, so when there is insufficient flow, the engine may not receive the necessary amount of fuel, leading to a lean air-fuel mixture.
Common Causes of P120C
- Clogged fuel injector
- Faulty fuel injector
- Fuel pressure regulator issues
- Fuel pump problems
- Electrical faults in the injector circuit
Symptoms of P120C
- Rough idling or engine misfires
- Reduced power and acceleration
- Poor fuel efficiency
- Engine stalling or hesitation
- Check Engine Light illuminated on the dashboard
How to Fix P120C
- Diagnose the specific cause of the insufficient flow in the secondary fuel injector bank 2 by performing a fuel system analysis and inspecting the injector and related components.
- Clean or replace the clogged or faulty fuel injector to ensure proper fuel flow.
- Check and replace the fuel pressure regulator if necessary to maintain the correct fuel pressure.
- Inspect and test the fuel pump to ensure it is functioning correctly and replace it if needed.
- Verify and repair any electrical faults in the injector circuit to ensure proper operation.
Cost to Fix P120C
The typical repair costs for addressing a secondary fuel injector bank 2 insufficient flow issue can vary depending on the specific cause of the problem and the labor rates at the auto repair shop. Generally, the cost can range from $200 to $600 for parts and labor. It is important to note that diagnosis time and labor rates can vary based on location, vehicle make and model, and engine type. Auto repair shops commonly charge between $80 and $150 per hour for labor, but rates can be higher in metropolitan areas or at dealerships, while independent shops may offer lower rates. It is advisable to obtain quotes from local shops for a more accurate estimate.
Need more information about the P120C code?
Need more information on how to fix the P120C code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P120C code diagnosed by a professional: Find a repair shop in your area
Code P120C Information for Specific Makes
- P120C Ford — Secondary Fuel Injector Bank 2 Insufficient Flow
Frequently Asked Questions about P120C Code
1. What are the common symptoms of OBDII code P120C (Secondary Fuel Injector Bank 2 Insufficient Flow)?
- Common symptoms include rough idling, poor acceleration, engine misfires, and a decrease in fuel efficiency.
2. What are the possible causes of OBDII code P120C?
- The code P120C can be triggered by issues such as a clogged fuel injector, fuel delivery problems, wiring issues, or a faulty fuel injector control module.
3. How can I diagnose the cause of OBDII code P120C?
- To diagnose the issue, you can perform a visual inspection of the fuel injector, check the fuel pressure, test the fuel injector for proper operation, and inspect the wiring for any damage.
4. Can a dirty fuel injector cause OBDII code P120C?
- Yes, a dirty or clogged fuel injector can restrict fuel flow, leading to insufficient flow in Bank 2 and triggering the OBDII code P120C.
5. What are the repair options for OBDII code P120C?
- Repair options may include cleaning or replacing the fuel injector, fixing any fuel delivery issues, repairing damaged wiring, or replacing the fuel injector control module.
6. How important is it to address OBDII code P120C promptly?
- It is essential to address the code promptly to prevent further damage to the engine and ensure optimal performance and fuel efficiency of the vehicle.
7. Can driving with OBDII code P120C cause damage to the vehicle?
- Driving with OBDII code P120C can potentially lead to engine damage, decreased performance, and increased fuel consumption if left unaddressed for an extended period.
8. How much does it typically cost to repair OBDII code P120C?
- The cost of repairing OBDII code P120C can vary depending on the underlying issue, but it may range from a few hundred to a few thousand dollars, including parts and labor.
9. Can I reset the OBDII code P120C without fixing the underlying issue?
- While you can reset the code using an OBDII scanner, it is not recommended as the issue causing the code will persist, potentially leading to further problems down the line.
10. Is it possible to prevent OBDII code P120C from occurring in the future?
- Regular maintenance, including using high-quality fuel and injector cleaner, can help prevent issues that may trigger OBDII code P120C and ensure the proper functioning of the fuel system.
Discuss the causes and fixes for P120C OBDII Code
Code P120C comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.