Engine-CodesGeneric – P1012

P1012 Code - Fuel Pump Delivery Pressure Too High

Quick Answer

The diagnostic trouble code P1012 indicates that the fuel pump delivery pressure in the vehicle's fuel system is too high. Common causes include Faulty fuel pressure regulator, Clogged fuel filter, Malfunctioning fuel pump. 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
P1012 indicates Fuel Pump Delivery Pressure Too High.
Common causes
Common causes include Faulty fuel pressure regulator, Clogged fuel filter, Malfunctioning fuel pump.
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.
Table of contents Created and updated by William Orellana on Aug 19, 2024
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Code P1012 Description

The diagnostic trouble code P1012 indicates that the fuel pump delivery pressure in the vehicle's fuel system is too high. This can lead to a variety of performance issues and potential damage to other components within the fuel system. The fuel pump is responsible for delivering fuel from the tank to the engine at the correct pressure, and when this pressure is too high, it can cause issues with fuel delivery and combustion. If not addressed, this issue can lead to poor engine performance, decreased fuel efficiency, and potential damage to the fuel injectors and other fuel system components.

OBDII Code P1012 - Fuel Pump Delivery Pressure Too High
P1012 Code - Fuel Pump Delivery Pressure Too High

Common Causes of P1012

  1. Faulty fuel pressure regulator
  2. Clogged fuel filter
  3. Malfunctioning fuel pump
  4. Issues with the fuel pressure sensor
  5. Fuel line restrictions or kinks

Symptoms of P1012

  1. Engine misfires or hesitation during acceleration
  2. Rough idling or stalling
  3. Decreased fuel efficiency
  4. Check engine light illuminated
  5. Fuel smell in or around the vehicle

How to Fix P1012

  1. Diagnose the issue by using a fuel pressure gauge to measure the actual fuel pressure in the system.
  2. Inspect and replace the fuel pressure regulator if it is faulty.
  3. Check and replace the fuel filter if it is clogged.
  4. Test the fuel pump for proper functioning and replace if necessary.
  5. Inspect the fuel lines for restrictions or kinks and address as needed.

Cost to Fix P1012

The cost of repairing a fuel pump delivery pressure too high issue can vary depending on the specific cause of the problem and the make and model of the vehicle. On average, the repair cost can range from $200 to $500 for parts and labor. It's important to note that diagnostic time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate.

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Code P1012 Information for Specific Makes

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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