Low fuel pressure systems are typically used on a diesel engine. In these systems, the injection pump delivers enough fuel pressure to the engine to properly atomize the fuel. For this reason, the injection pump needs to have a sufficient amount of fuel. The ECM (Engine Control Module) supervises this system, taking into account that if the fuel pump or injector introduces air during a low load, the results will be serious problems.
When the ECM detects that the low fuel pressure system does not have the required pressure, the DTC P008A OBDII code will be set.
The on-board diagnostics (OBD) checks your vehicle’s performance through a network of sensors and alerts you to potential problems. Fault codes, such as P008A, help you understand the nature of a potential problem within your vehicle.
Figuring out what caused a DTC to set can be a daunting and time-consuming task. Proper diagnosis requires the vehicle owner or a mechanic to narrow down the problem from a list of possible causes.
With the right tools and the right information, it is possible to resolve the root problem behind P008A. Repair manuals and vehicle-specific databases are the best sources of information, as they contain step-by-step instructions and helpful illustrations. Find out its symptoms and possible causes with this brief guide.