P0090 Infiniti Code - High Pressure Fuel Pump Performance
Quick Answer
The high pressure fuel pump is installed at the front of the engine bank 2 side and activated by the camshaft. Common causes include Fualty High Pressure Fuel Pump, Faulty Low Pressure Fuel Pump, High Pressure Fuel Pump harness is open or shorted. 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
- P0090 Infiniti indicates High Pressure Fuel Pump Performance.
- Common causes
- Common causes include Fualty High Pressure Fuel Pump, Faulty Low Pressure Fuel Pump, High Pressure Fuel Pump harness is open or shorted.
- 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 P0090 Infiniti Description
What are the Possible Causes of the DTC P0090 Infiniti?
- Fualty High Pressure Fuel Pump
- Faulty Low Pressure Fuel Pump
- High Pressure Fuel Pump harness is open or shorted
- High Pressure Fuel Pump circuit poor electrical connection
- Low Pressure Fuel Pump harness is open or shorted
- Low Pressure Fuel Pump circuit poor electrical connection
How to Fix the DTC P0090 Infiniti?
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 P0090 Infiniti 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 P0090 Infiniti code?
Need more information on how to fix the P0090 Infiniti code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0090 Infiniti code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0090 Infiniti Code
1. What are the common symptoms of OBDII code P0090 in an Infiniti related to the high pressure fuel pump performance?
- Common symptoms include rough idling, engine stalling, loss of power, and difficulty starting the vehicle.
2. What are some possible causes of OBDII code P0090 in an Infiniti related to the high pressure fuel pump performance?
- Potential causes include a faulty high pressure fuel pump, fuel pressure sensor issues, clogged fuel filter, or wiring/connectivity problems.
3. How can I diagnose OBDII code P0090 in my Infiniti related to the high pressure fuel pump performance?
- Diagnose by checking the fuel pressure using a gauge, inspecting the fuel pump, testing the fuel pressure sensor, and examining the fuel lines for any blockages.
4. What are the recommended repair tips for fixing OBDII code P0090 in an Infiniti related to the high pressure fuel pump performance?
- Repair tips include replacing the high pressure fuel pump, cleaning or replacing the fuel filter, checking and repairing any damaged wiring, and resetting the fault codes after repairs.
5. Can driving with OBDII code P0090 in an Infiniti related to the high pressure fuel pump performance cause further damage?
- Continuing to drive with this issue can potentially damage the engine due to insufficient fuel delivery, so it is recommended to address the problem promptly.
6. How do I reset the OBDII code P0090 in my Infiniti after fixing the high pressure fuel pump issue?
- You can reset the code using an OBDII scanner tool or by disconnecting the car's battery for a few minutes to clear the fault code.
7. Is it safe to continue driving my Infiniti with OBDII code P0090 related to high pressure fuel pump performance?
- It is not recommended to drive the vehicle with this issue as it can lead to engine damage and potential safety hazards.
8. How much does it typically cost to repair OBDII code P0090 in an Infiniti related to the high pressure fuel pump performance?
- The cost of repairs can vary depending on the exact cause of the issue, but it may range from $200 to $800 or more, including parts and labor.
9. Can a DIY enthusiast fix OBDII code P0090 in an Infiniti related to the high pressure fuel pump performance?
- While some aspects of the repair may be DIY-friendly, diagnosing and fixing high pressure fuel pump issues may require specialized tools and expertise, so professional help is often recommended.
10. How often does OBDII code P0090 related to the high pressure fuel pump performance occur in Infiniti vehicles?
- This code is relatively uncommon but can occur in older or high-mileage Infiniti vehicles experiencing fuel system problems.
Discuss the causes and fixes for P0090 Infiniti OBDII Code
Code P0090 Infiniti 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.
