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P0090 Infiniti Code - High Pressure Fuel Pump Performance

- Code Popularity: 12,651 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P0090 Infiniti?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • 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
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How to Fix the DTC P0090 Infiniti?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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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. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code P0090 Infiniti Description

The high pressure fuel pump is installed at the front of the engine bank 2 side and activated by the camshaft. Engine Control Module (ECM) controls the high pressure fuel pump control solenoid valve built into the high pressure fuel pump and adjusts the amount of discharge by changing the suction timing of the low pressure fuel.

OBDII Code P0090 Infiniti - High Pressure Fuel Pump Performance - AutoCodes.com
P0090 Infiniti Code - High Pressure Fuel Pump Performance

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