Engine-Codes - Generic - P0148

P0148 - Fuel Delivery Error

Repair Importance Level: 2/3
Repair Difficulty Level: 2/3  What is this?
Table of contents

P0148 Possible Causes

  • Fuel Leaks
  • Faulty Fuel Control Actuator
  • Faulty Fuel Pressure Sensor

How is the P0148 code repair?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

What is the cost to diagnose the P0148 code

Labor: 1.0

The cost to diagnose the P0148 code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.
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When is the code detected?

The powertrain control module has recognized one bank of the engine is running lean during a heavy acceleration.

Possible Symptoms

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

P0148 Meaning

The Fuel Control Actuator (FCA) is an electronically controlled solenoid valve. The ECM controls the amount of fuel that enters the high-pressure pumping chambers by opening and closing the FCA based on a demanded fuel pressure. When the FCA is opened, the maximum amount of fuel is being supplied to the fuel injection pump. Any fuel that does not enter the injection pump is directed to the cascade overflow valve. The cascade overflow valve regulates how much excess fuel is used for lubrication of the pump and how much is returned to the fuel tank through the drain manifold.

More Information

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Information for specific makes

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