Vauxhall P0230 - No control of fuel pump relay
P0230 is a common fault code that impacts a variety of Vauxhall models. This code indicates a problem with the fuel pump relay control, the relay that is responsible for turning on the fuel pump when the ignition is switched on. If the relay fails, the fuel pump doesn't receive power, which results in starting problems or complete engine failure while driving.
This fault occurs most often in the Delphi Delco Multec HSFI-2.x / HDRC ECU in the following Vauxhall models:
- Vauxhall Astra G (1998 – 2004)
- Vauxhall Combo C (2001 – 2011)
- Vauxhall Corsa C (2000 – 2006)
- Vauxhall Meriva A (2003 – 2010)
- Vauxhall Vectra B (1995 – 2002)
- Vauxhall Vectra C (2002 – 2008)
- Vauxhall Zafira A (1999 – 2005)
Possible causes of the P0230 fault code
There are several reasons why the fuel pump relay is not activated. Some possible causes are:
- Faulty fuel pump relay: The relay itself may be defective, preventing it from passing current to the fuel pump
- Wiring problems: An interrupted, melted or poor contact in the wiring can disrupt the power supply to the relay
- Blown fuses: A blown fuse can prevent the relay from receiving power
- Problems with the ECU: The Delphi Delco Multec HSFI-2.x / HDRC ECU (Electronic Control Unit) may have a malfunction, preventing it from sending a signal to the relay to control the fuel pump
- Poor ground connection: A poor ground connection can affect the operation of the relay
Tip: For the MT35E with this error code, the battery and/or starter motor can cause these problems due to "voltage peaks" during starting. One cause may be that the carbon brushes are worn. This causes voltage peaks in the system, and the starter motor can draw too much current.
Advice for solving this Vauxhall fault code
To resolve the P0230 fault code, the Delphi Delco Multec HSFI-2.x / HDRC can be remanufactured.
ACTRONICS offers a solution for this. This P0230 error code is a known problem for which ACTRONICS has developed a specialist solution You can place an order via our website, send the part, and we will take care of the rest. We guarantee that the part will be returned in top condition, backed by a two-year warranty.
Do you have any questions about this problem or other Vauxhall-related issues? Please feel free to contact us!