Unveiling the Secrets When the RGA Valve Opens and Closes

Open the valve. This will momentarily raise the vacuum pressure. When the pressure stabilizes, close the valve. The RGA should now be kept under high vacuum ... Start the truck and let it idle for a minimum of 5-minutes at normal operating temperature. This allows the PCM to learn the EGR valve closed ... I'm trying to digest how the EGR control strategy works to identify if the EGR motor needs to be replaced. I can't think of anything else. Disconnect the system from the electrical power supply. ⊲ The valves are closed when de-energized. Open the housing cover of the operating box. Open the ... From my understanding the tune should keep the EGR closed. I seem to ... Egr valve have been known to leak ( open) under pulling. An EGR valve remains in the closed position when the engine is started, at idle, and at wide open throttle. Vacuum Operated EGR Valve. There have been several ... ... valve is tightly closed, so no nitrogen is flowing into the system. Turn on the roughing pump+turbo. (Do not open the valve to the RGA head YET ... The area between the exhaust and intake manifolds, close to the engine, is a common place to locate the EGR valve. Still, many modern ... However, in the dual DP configuration, when the sample valve is closed the hydro- ... Every operation that takes place (valve open or close, pumps turned on or ... It is not necessary to wait for the steady state, you can open the RGA input valve using it after 5 min. Figure 5. Typical RGA spectrum with input valve closed.