1st Gen R53 Cooper S Replacing MAP Sensor - what do I need?

Discussion in '1st Generation: 2002–06 R50, R53 & 2004–08 R52' started by M^Cubed, Jul 21, 2009.

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  1. M^Cubed

    M^Cubed Member

    May 24, 2009
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    #1 M^Cubed, Jul 21, 2009
    I seem to have a MAP sensor going bad. When cruising with light throttle, the car goes limp for just a moment then comes back to life.

    What is needed to replace the MAP sensor? I believe it is under the IC in the intake manifold, but that is all I know.
     
  2. k-huevo

    k-huevo Club Coordinator

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    #2 k-huevo, Jul 21, 2009
    The downstream MAP or T-MAP is on the front of the intake manifold, the upstream MAP is above the thermostat housing, to the right of the head facing the engine. First, is there a fault code? Because MAP failures are rare be sure to eliminate other possibilities first.
     
  3. M^Cubed

    M^Cubed Member

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    #3 M^Cubed, Jul 21, 2009
    There are no codes to check. :mad2:
     
  4. M^Cubed

    M^Cubed Member

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    #4 M^Cubed, Jul 21, 2009
    From what I understand, my symptoms are generally related to the map sensor. Let me know if you can think of any other causes.
     
  5. Vernon29RW

    Vernon29RW New Member

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    #5 Vernon29RW, Jul 21, 2009
    Backprobe both of your sensors before changing them. I had a hesitation problem and I convinced myself that my tmap sensor was going bad. Went to the dealer and bought one only to have the same problem afterward. So I got smart and bought the Bentley diagnosis manual and backprobed the map sensor before buying that one as well and got correct voltage readings with the car off key on and at idle, telling me the sensor is working properly. It takes only a few minutes and can save you $150 between the two sensors.
    Hope this helps,
    Steve
     
  6. Way Motor Works

    Way Motor Works New Member

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    #6 Way Motor Works, Jul 23, 2009
    I'd have it diagnosed by a MINI professional. I've only replaced 1 map sensor in the last 5yrs.
     
  7. Detroit Tuned

    Detroit Tuned Well-Known Member
    Motoring Alliance Founding Sponsor

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    #7 Detroit Tuned, Jul 24, 2009
    i second that ^^^^^.

    Chad
    Detroit Tuned
     
  8. Camaro

    Camaro New Member

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    #8 Camaro, Aug 7, 2009
    I have replaced the primary (manifold) map and the secondary (above t-stat) once. Both had the same symptoms except the primary had me limping home where the secondary just had this feathering of the throttle when cruising down the road. Now the car runs perfectly fine:D
     
  9. Tüls

    Tüls New Member

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    #9 Tüls, Aug 8, 2009
    Yeah that!
     
  10. C.I.

    C.I. New Member

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    #10 C.I., Dec 8, 2014
    same problem of hesitation...

    Looks like a ride to Atlanta is in my future to see Way.

     

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