Fuel System Overview
The ROUSH CleanTech liquid propane autogas fuel system is a dedicated liquid injected system and completely replaces the OEM fuel system. The conversion process involves removing the OEM fuel tank assembly, the fuel line assembly and the fuel rail assembly. The vehicle then has the ROUSH CleanTech liquid propane autogas fuel system installed on it. An overview of the system hardware can be seen in Figure 1. Note that each application varies somewhat; the system shown is an in-bed tank installation from the 2007.5 to 2008 Ford F-150 application.
Figure 1: ROUSH CleanTech Liquid Propane Autogas Fuel System
The ROUSH CleanTech liquid propane autogas fuel system consists of four major subsystems. A list of these subsystems and their key components can be found in Table 1.
| Subsystem | Component | Comment |
|---|---|---|
| Fuel Rail Assembly | Fuel Rails | |
| Fuel Injectors | See Table 2: I/O Changes | |
| Injection Pressure / Temperature Sensor | See Table 2: I/O Changes | |
| Fuel Line Assembly | Fuel Lines | |
| Flow Control Solenoid / Fuel Rail Pressure Control Module | See Table 2: I/O Changes | |
| Fuel Tank Assembly | Fuel Tank | |
| Fuel Pump | ||
| Fuel Level Sender | See Table 2: I/O Changes | |
| Powertrain Control System | PCM Calibration | Modified Strategy & Calibration for LPG |
| Smart Relay Module (SRM) | ||
| Wiring Harness | Overlay harness to interface with PCM |
Table 1: ROUSH CleanTech Liquid Propane Autogas Fuel System & Subsystems
