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  • Map Sensor

    Motor 2006 Mercury 150hp EFI 2 stroke

    Is it normal to have to regularly clean out the MAP sensor?

    I find if the MAP is not cleaned out with MAP sensor spray the motor will run rich and foul plugs at rpms lower than 3800rpm.

    If i clean it after every couple of trips the fuel flow responds to lower throttle settings, if it is not cleaned the fuel flow stays high when backing off the throttle to lower rpms and fouls the plugs.

    (Fuel flow is taken from Smartcraft)

    I am considering taking the MAP out of the intake manifold and remotely mounting it with a hose from the intake manifold. This should stop the oil building up in the MAP and causing the blockage.

    What do you guys think

    Thanks in advance.
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