Cold Engine
With engine cold, the PVS is closed. This blocks the vacuum signal to the EGR valve. The EGR valve remains closed preventing recirculation of the exhaust gages. The incoming air/fuel mixture is not diluted during cold engine operation.
With engine cold, the PVS is closed. This blocks the vacuum signal to the EGR valve. The EGR valve remains closed preventing recirculation of the exhaust gages. The incoming air/fuel mixture is not diluted during cold engine operation.