Diesel Particulate Filters (DPF)’s main function is to filter pollutants through small fibres within its housing. When the DPF is full it goes through a cleaning phase known as regeneration. The vehicle’s ECM determines when to regenerate the DPF based on the amount of soot / particulate matter in the filter.
DPF’s are usually reliable when vehicles are driven in a way that allows the system to regenerate, ideally at highway cruise speed. In many cases where vehicles are not driven under ideal conditions, eg: short, stop – start trips, the system will not be working efficiently. To overcome this issue manufacturers have introduced a Diesel Fuel Vaporiser system to assist in incinerating particulate matter. The main component being a Fuel Vapour Valve (FVV).
A Fuel Vapour Valve is an electrically heated glow plug that evaporates the diesel fuel, then injects it through a tiny orifice into the exhaust gas stream directly before the DPF. The FVV incinerates particulate matter without oil dilution and requires no additional cooling, helping to improve fuel economy and CO2 emissions. This also enables more frequent DPF regeneration with low load conditions and when idling, allowing for an extended operating range.
Fuel Vapour Valves require regular maintenance and may require replacing when not functioning correctly or logging associated fault codes.
Goss have a range of OE compatible Fuel Vapour Valves available. Visit our catalogue to search by vehicle application.