PCV valve EFI tuning with aftermarket fuel injection Holley Fast Megasquit Fitech fixed orifice EFI
Channel: Fintech Repair Shop
Date: 2019-05-26

If your having issues with getting a good tune with your aftermarket fuel injection systems you might want to look at you positive crank case ventilation valve. The factory variable spring loaded valves can create havoc in your tune. When your trying to dial in your Tip In or Acceleration pump the last thing you want is to be fighting with and opening and closing PCV valve. Especially if you use auto tune A fixed orifice valve is way more consistent . The variable valve with be better at evacuating gasses but that doesn't matter with your car or truck does not run right. Most aftermarket Fuel injection systems check your load using a MAP sensor which is directly affected by a opening and closing valve. The spring is not a precision part and behaves differently and different temps. The valve opening at throttle tip in is not good. 

Fixed Orifice Valve
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