start issue

  1. M

    Intermittent startup surging

    Few months ago I installed a mspnp2, along with GT40P heads and intake on my 95gt, idling has always been an issue but the startup creeps to around 3k and hangs there for 4-5 seconds before dropping down, this is only when the car has ran in the last couple hours, cold starts in the morning...
  2. L

    Crank but no start in humid/rainy weather

    2003 V6 Mustang. In dry weather, the car just starts fine. In humid weather, especially after it rains; it doesn't start, but still cranks. I checked the ignition on one of the spark plug wires with an ignition tester and the spark is there. I also tested the fuel pressure at the schraeder...