Radium Engineering
Radium Engineering Diaphragm Service Replacement FPD
Regular price
$28.45
Regular price
$29.95
Sale price
$28.45
Replacement FPD Diaphragm (18-0018) by Radium. The opening and closing of fuel injectors creates pressure pulses in the fuel rail which can lead to unstable fuel pressure. In order to achieve a safe and consistent rail pressure, a fuel pulse damper (FPD) is often necessary. The FPD's internal diaphragm will absorb oscillating pulses and stabilize fuel pressure. This correction can be measured throughout the RPM range and can often help idle surge, especially with high flow injectors. Furthermore, a fuel pulse damper can help solve erratic lean air/fuel ratio spikes, commonly experienced as "stumbling", that are difficult to tune out. When you need a headlight bulb or a stop light switch, you may be tempted to just run down to the local auto parts chain store.