Diverter Valve: Notes

The air flows from the air pump into the diverter valve. This valve prevents backfiring, by stopping air injection flow during periods of high increase in manifold vacuum (such as during deceleration). The diverter valve dumps the air supply to the atmosphere for the first few seconds of deceleration.

Most diverter valves also have a built-in pressure relief valve, which bleeds off excessive air pump pressure to prevent damage to the system. Most diverter valves are similar. See Figure .