
PM5 Brushless Fuel Pump Controller
Torqbyte PM5 is an advanced microprocessor-controlled brushless low-pressure fuel pump (LPFP) controller. It was designed to be used as either a standalone controller or a complete Plug-n-Play drop-in replacement for the OEM fuel pump PWM control module. PM5 is used to overcome the challenge of increased fueling in returnless direct injection fuel systems where the ECU and the OEM fuel pump control module work together to achieve closed loop control of the fuel system line pressure. Unlike brushed fuel pump controllers, brushless pump controllers are uniquely tuned for the specific pump they are supplied with. It is generally impossible to attach a mismatched brushless fuel pump to a particular brushless controller and expect the combination of two to provide long-term, trouble-free and reliable operation. Generally, a mismatch between the pump controller and the attached pump will result in reduction of usable pump duty range (limiting the pump's performance and requiring tuning "band