What Is a Purge Valve in a Car?

Answer

A purge valve is a regulator that allows air to mix with the fuel. This makes the fuel burn effectively. It then transfers the fuel that is mixed with air to the canister and ignition chambers in the vehicle. It works in a continuous motion as long as the engine is running.
Q&A Related to "What Is a Purge Valve in a Car"
you hook up a fuel pressure guage to it to check the fuel pressure.
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The Vacuum Cut Valve is a white plastic valve near the fuel
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The blow off valve regulates boost pressure. If boost exceeds a certain threshold, the valve opens and dumps the excess air to atmosphere!
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The purge valve is part of your evaporative emissions system, and normally, a malfunction with any part of this system won't cause a noticeable problem, you could simply misfiring
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