Engine-CodesFord – P1690 Ford

P1690 Ford Code - Wastegate Solenoid Circuit Malfunction

Quick Answer

The P1690 Ford code indicates a wastegate solenoid circuit malfunction in the vehicle's turbocharger system. Common causes include Electrical issues such as a faulty solenoid or wiring, Vacuum leaks in the wastegate system, Mechanical failure within the wastegate solenoid. 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
P1690 Ford indicates Wastegate Solenoid Circuit Malfunction.
Common causes
Common causes include Electrical issues such as a faulty solenoid or wiring, Vacuum leaks in the wastegate system, Mechanical failure within the wastegate solenoid.
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 09, 2024
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Code P1690 Ford Description

The P1690 Ford code indicates a wastegate solenoid circuit malfunction in the vehicle's turbocharger system. The wastegate solenoid is responsible for controlling the boost level produced by the turbocharger, ensuring optimal engine performance. When this circuit malfunctions, it can lead to a variety of issues that affect the vehicle's overall performance and efficiency.

OBDII Code P1690 Ford - Wastegate Solenoid Circuit Malfunction
P1690 Ford Code - Wastegate Solenoid Circuit Malfunction

Common Causes of P1690 Ford

  1. Electrical issues such as a faulty solenoid or wiring
  2. Vacuum leaks in the wastegate system
  3. Mechanical failure within the wastegate solenoid
  4. Clogged or stuck wastegate valve
  5. Software or calibration issues with the engine control module

Symptoms of P1690 Ford

  1. Decreased engine power
  2. Reduced fuel efficiency
  3. Engine stalling
  4. Rough idling
  5. Hesitation or surging while driving

How to Fix P1690 Ford

  1. Begin by diagnosing the specific cause of the wastegate solenoid circuit malfunction using a diagnostic scanner.
  2. Inspect the wastegate solenoid and wiring for any visible damage or loose connections.
  3. Test the wastegate solenoid's electrical connections and replace any faulty components.
  4. Check for vacuum leaks in the wastegate system and repair or replace any damaged hoses.
  5. Clear the diagnostic trouble codes from the vehicle's engine control module and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P1690 Ford

The typical repair costs for addressing a wastegate solenoid circuit malfunction can range from $200 to $500, including parts and labor. However, it's important to note that specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It's advisable to check local rates for a more precise estimate.

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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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