Engine-CodesDodge – P1691 Dodge

P1691 Dodge Code - Fuel Injection Pump Controller Calibration Error

Quick Answer

The P1691 diagnostic trouble code for Dodge vehicles indicates a Fuel Injection Pump Controller Calibration Error. Common causes include Faulty Fuel Injection Pump Controller, Malfunctioning fuel injectors, Electrical issues with the fuel system. 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
P1691 Dodge indicates Fuel Injection Pump Controller Calibration Error.
Common causes
Common causes include Faulty Fuel Injection Pump Controller, Malfunctioning fuel injectors, Electrical issues with the fuel system.
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 Sep 10, 2024
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Code P1691 Dodge Description

The P1691 diagnostic trouble code for Dodge vehicles indicates a Fuel Injection Pump Controller Calibration Error. This code is typically associated with an issue in the fuel injection system, specifically with the Fuel Injection Pump Controller. The Fuel Injection Pump Controller is responsible for regulating the fuel flow to the engine, ensuring that the correct amount of fuel is delivered for optimal performance.

OBDII Code P1691 Dodge - Fuel Injection Pump Controller Calibration Error
P1691 Dodge Code - Fuel Injection Pump Controller Calibration Error

Common Causes of P1691 Dodge

  1. Faulty Fuel Injection Pump Controller
  2. Malfunctioning fuel injectors
  3. Electrical issues with the fuel system
  4. Clogged fuel filter
  5. Fuel pressure regulator failure

Symptoms of P1691 Dodge

  1. Engine misfires or hesitation during acceleration
  2. Reduced fuel efficiency
  3. Rough idle or stalling
  4. Check Engine Light illuminated
  5. Loss of power or performance

How to Fix P1691 Dodge

  1. Diagnose the issue using a diagnostic scanner to confirm the P1691 code and identify the specific cause of the calibration error.
  2. Inspect the Fuel Injection Pump Controller and related components for any visible signs of damage or wear.
  3. Test the fuel injectors, fuel pressure regulator, and fuel filter to ensure they are functioning properly.
  4. Replace the faulty Fuel Injection Pump Controller or any other damaged components in the fuel system.
  5. Clear the error code and reset the vehicle's computer system to ensure the issue has been resolved.

Cost to Fix P1691 Dodge

The cost of repairing a Fuel Injection Pump Controller Calibration Error can vary depending on the specific cause of the issue and the cost of replacement parts. On average, the repair costs for this issue can range from $300 to $800, including both 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. Keep in mind that rates may be higher at dealerships or in metropolitan areas, while independent shops may offer more affordable prices.

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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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