Fuel Pressure Sensor Archives - UnderhoodService
Understanding Engine Misfire Codes

When the fuel/air mixture ignites, many factors must be met to pass a misfire monitor.

High Pressure Direct Injection Fuel Systems

The main destroyer of high-pressure fuel pumps is a lack of oil changes.

Today’s Fuel Pressure Diagnostics

Direct injection pressure is measured with sensors, and you’ll need a scan tool to measure the signals

VIDEO: Fuel Pump Level Sender Operation

How do modern gas gauges stay still when the gas in your tank moves around? This video is sponsored by Carter.

Fuel Pressure And Volume

The fuel pressure sensor usually has three wires and operates on five volts. What controls the speed of the fuel pump?

Fuel Pump Codes And Control: Keeping Pressure In The Zone

Since the fuel pump module needs information for various sensors, it usually communicates on a serial data bus. If modules are not communicating, the fuel pump can’t be adequately controlled. The key to investigating these problems is to communicate with different modules to see what data PIDs are present and which ones are missing.