P120D Code - Secondary Fuel Injector Bank 2 Excessive Flow
Quick Answer
The P120D diagnostic trouble code (DTC) indicates that there is excessive flow detected in the secondary fuel injector bank 2. Common causes include Faulty fuel injector, Clogged fuel injector, Fuel pressure regulator 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
- P120D indicates Secondary Fuel Injector Bank 2 Excessive Flow .
- Common causes
- Common causes include Faulty fuel injector, Clogged fuel injector, Fuel pressure regulator 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.
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 P120D Description
The P120D diagnostic trouble code (DTC) indicates that there is excessive flow detected in the secondary fuel injector bank 2. This means that there is an issue with the fuel injectors on the second bank of cylinders in the engine, causing more fuel than necessary to be delivered to the combustion chamber. This can lead to a rich air-fuel mixture, affecting the engine's performance and efficiency.
Common Causes of P120D
- Faulty fuel injector
- Clogged fuel injector
- Fuel pressure regulator malfunction
- Fuel delivery system issues
- Wiring or electrical problems
Symptoms of P120D
- Decreased fuel efficiency
- Rough idling or stalling
- Engine misfires
- Loss of power
- Increased emissions
How to Fix P120D
- Diagnose the issue using a scan tool to confirm the code and pinpoint the problematic fuel injector.
- Inspect the fuel injector for any signs of damage or clogging.
- Clean or replace the faulty fuel injector.
- Test the fuel injector after repair to ensure proper functioning.
- Clear the DTC and test drive the vehicle to confirm that the issue has been resolved.
Cost to Fix P120D
The typical repair costs for addressing a P120D code can vary depending on the specific cause of the issue and the make and model of the vehicle. On average, the repair costs can range from $200 to $500, including parts and labor. However, it is important to note that labor rates and parts prices can vary significantly based on location, the complexity of the repair, and the type of vehicle. It is recommended to consult with a qualified mechanic or auto repair shop for a more accurate cost estimate.
Need more information about the P120D code?
Need more information on how to fix the P120D code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P120D code diagnosed by a professional: Find a repair shop in your area
Code P120D Information for Specific Makes
- P120D Ford — Secondary Fuel Injector Bank 2 Excessive Flow
Frequently Asked Questions about P120D Code
1. What are the common symptoms of OBDII code P120D (Secondary Fuel Injector Bank 2 Excessive Flow)?
- Common symptoms include rough idling, engine misfires, decreased fuel efficiency, and potential stalling of the vehicle.
2. What could be the potential causes of OBDII code P120D?
- Potential causes may include a faulty fuel injector in bank 2, clogged fuel injector, fuel pressure issues, vacuum leaks, or a problem with the fuel injection system.
3. How can I diagnose OBDII code P120D?
- Diagnosis typically involves using an OBDII scanner to read the code, checking for other related codes, inspecting the fuel injectors, testing fuel pressure, and looking for any visible signs of leaks or damage.
4. Can driving with OBDII code P120D cause further damage to the vehicle?
- Continuing to drive with this code may lead to engine damage, decreased performance, and potential issues with the catalytic converter. It is recommended to address the issue promptly.
5. How can I repair OBDII code P120D?
- Repairing this code may involve cleaning or replacing the fuel injector in bank 2, addressing any fuel system issues, fixing vacuum leaks, and clearing the code with an OBDII scanner.
6. Is it safe to continue driving with OBDII code P120D?
- It is not recommended to drive with this code present, as it can lead to further damage to the vehicle's engine and components. It is advisable to address the issue as soon as possible.
7. Are there any DIY tips for fixing OBDII code P120D?
- DIY tips may include checking for visible signs of damage, cleaning the fuel injectors, inspecting for vacuum leaks, and ensuring proper fuel pressure. However, complex repairs may require professional assistance.
8. How much does it cost to repair OBDII code P120D?
- The cost of repair can vary depending on the underlying issue causing the code. It may range from a simple cleaning of the fuel injector to a more involved repair or replacement, which can impact the overall cost.
9. Can a faulty oxygen sensor trigger OBDII code P120D?
- While a faulty oxygen sensor is not a direct cause of this code, it can contribute to fuel system issues that may lead to the triggering of OBDII code P120D if left unresolved.
10. How long does it typically take to repair OBDII code P120D?
- The repair time can vary based on the specific cause of the code and the complexity of the repair needed. Simple fixes may take a few hours, while more involved repairs could require a day or more.
Discuss the causes and fixes for P120D OBDII Code
Code P120D 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.