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Thread: Madman EMS2 - for TD5

  1. #11
    Join Date
    Jan 1970
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    Looks like the coolant alarm is resolved. Loose contact on the sensor. Still has me stumped as to why the temp sensor is reading backwards?? Any one come across this before?
    Defender ECU?

    I agree with the findings of the OP and have similar readings on my 2002 TD5 D2 auto with now 224500Kms ..
    I just completed about 1500-2000Km towing my 2002 Coromal 505 Pioneer XC single axle pop top weighing about 1700KG.
    My water temps stayed at 82-85 on the flat at 95-100Kmh with about 94 the highest on the long climbs North of Buledelah.
    EGTs taken at the manifold just before the turbo "the dimple" at 450-500C on the flat.
    I hold under 700 on hills and change down if below say 85 in 4 lock.

    Under 2000RPM boost is about 13PSI. On hills over 2200RPM boost rises to about 18PSI. I tend to approach big hills at 110Kmh and let speed decay to whatever. On one of the big Buladelah hills southbound I crested at 100Kmh which was better than my RRC 3.9 could do with only a 1000KG camper behind. If you approach at 110 , then you are in the meaty part of the torque curve and the result is much better than if you approach at 100Kmh.

    I do not monitor transmission temps but have replaced the cooler lines with new genuine and use Castrol Transmax Z full synthetic. I try to keep locked as much as possible. The transmission so far is working flawlessly.

    One very interesting thing I found is that EGTs and boost can be reduced by Drafting large square back trucks even if back say 20-25 metres. I saw EGT reductions of up to 50C and boost drop by 5PSI on the flat.
    Of course you have to be doing 102KMh to be able to draft. I found that at my usual say 95-100 KMh a truck would pass and I would accelerate up to their speed and then MAGIC.
    I don't know what the drivers think of that as it would increase their drag. No wiggles or any other negatives. The biggest wiggle happens when big square trucks overtake and the Coromal barely moves.
    ALL in all I am very pleased with the old girls.
    Regards PhilipA

  2. #12
    Join Date
    Jan 2010
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    On sebaticle with work in Penang for a bit life is good 👍
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    Manual D2

  3. #13
    Join Date
    Jun 2013
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    Universe A
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    Quote Originally Posted by 4runnernomore View Post
    Manual D2
    I think what was meant is that if the wrong ECU, or even the wrong mapping is installed, a common fault was the temp gauge reading backwards, I.E. Disco ECU and mapping in a defender= backwards gauge.

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