P0619 Fault Code

Alternative Fuel Control Module RAM/ROM Error

• What does that mean?
• Symptoms
• Causes
• Solutions

The P0619 fault code indicates an error related to the RAM/ROM of the Alternative Fuel Control Module. This issue can disrupt the module's ability to properly manage and control alternative fuel systems in vehicles, leading to performance problems.

What are the symptoms of the P0619 code?

Drivers may experience a variety of symptoms when the P0619 code is triggered, including:

• Illuminated check engine light.
• Poor fuel economy due to improper fuel mixture adjustments.
• Decreased engine performance or rough running.
• Difficulty starting the vehicle.

What causes the P0619 code?

Common causes of the P0619 code may include:

• Software issues within the Alternative Fuel Control Module.
• Faulty wiring or connectors that affect the module's communication.
• Corruption in the storage of data (RAM/ROM) within the module.
• Hardware malfunctions such as circuit board failures or component degradation.

How to fix P0619?

To resolve the P0619 fault code, consider the following steps:

• Inspect the Alternative Fuel Control Module’s wiring and connectors for damage or corrosion.
• Update or reprogram the module’s software if an update is available.
• Replace the module if a hardware failure is confirmed.
• Clear the error code and conduct a test drive to ensure the issue is resolved.