P2289 Fault Code

Injector Control Pressure Too High Engine Off

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

The P2289 fault code indicates that the injector control pressure is excessively high when the engine is off. This condition can disrupt normal engine operation and affect fuel delivery, potentially leading to performance issues.

What are the symptoms of the P2289 code?

When experiencing a P2289 fault code, you may notice:

• Difficulty starting the engine
• Rough idling or stalling
• Poor fuel economy
• Check Engine Light illuminated on the dashboard
• Unusual sounds from the engine during operation

What causes the P2289 code?

Several factors can contribute to this fault code, including:

• Faulty fuel pressure regulator
• Malfunctioning fuel pump
• Leaks in fuel lines or injectors
• Issues with the engine control module (ECM)
• Blocked fuel return lines
• Inaccurate sensors reporting high pressure

How to fix P2289?

To address a P2289 code, the following steps may be taken:

• Inspect and replace a faulty fuel pressure regulator if needed
• Test the fuel pump for proper operation and replace if malfunctioning
• Check for fuel leaks and repair any identified issues
• Examine connections to the ECM and replace any faulty wiring or components
• Clear the fault codes and test drive the vehicle to see if the issue reoccurs