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  1. 2

    7.4 mpi doesn’t want to idle?

    I’m thinking the problem mite be a dirty injector. A cylinder was cutting in and out when we were out yesterday.
  2. 2

    7.4 mpi doesn’t want to idle?

    Also replaced the iac
  3. 2

    7.4 mpi doesn’t want to idle?

    when it has warmed up it will fire right up and quit. i can put my hand on the the engine and its not crazy hot, also put a new sea pump in it.
  4. 2

    7.4 mpi doesn’t want to idle?

    its 43 psi constant, idle, WOT its 43 PSI. load no load 43 psi. the problem is under 1000 rpms,. dosnt matter neutral, forward, reverse. it wants to quit / surge and quit. it always fires right up i have be fast on the shifter to get into gear and give it gas when i start it. better when cold...
  5. 2

    7.4 mpi doesn’t want to idle?

    Not a new boat, a salvaged boat 2001 cobalt 232 i have 43 psi constant. serial # 0M006877 i have had the boat for a couple of years. Not a new problem, i've been trying to solve it for a while now. It was salt water boat. the fuel system was REALLY dirty. it had lots of stuff in it from...
  6. 2

    7.4 mpi doesn’t want to idle?

    I have a problem with my 7.4 mpi... it just doesn’t want to idle. I did clean out my tank lines and injectors replaced the tps, iac, rotor cap plugs wires cleaned up some corrosion. New batteries new fuel pressure regulator. Not sure if the pump needs replaced yet. Also new temp sensor...Thank...
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