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Thread: piggyback ecu

  1. 19th March 2011, 09:18 PM #1
    davo52
    davo52 is offline Fossicker
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    piggyback ecu

    I recently fitted a haltech interceptor ecu to my 1997 autobiography mainly to try to improve fuel consumption and to get rid of a couple of flat spots in the rev range.
    I do not have access to a dyno down here so I organised a mild tune map for petrol and an LPG specific ignition map to do me until I can get to a dyno for a proper tune.
    Mileage running on gas has improved 40%, no figures as yet for petrol but the flat spots have gone and running seems smoother.
    Anyone else have any experience with the device, good or bad?
    I hope it's OK to mention the product, I apologise if not.
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  2. 19th March 2011, 09:26 PM #2
    Remy
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    Yes there are a few of us running the haltech with mixed results. Do a search on haltech and you find some dyno runs. I run mine with gas and petrol.
    Cheers,
    Remy
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  3. 20th March 2011, 06:13 AM #3
    Keithy P38's Avatar
    Keithy P38
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    Any issues getting the Haltech to talk with the BeCM or other ecu's?? I thought it'd be a hard job!
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  4. 20th March 2011, 05:22 PM #4
    davo52
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    no issues, pretty straight forward. Took about an hour to fit.
    Only involves about seven wires and more or less just intercepts the signal from certain engine sensors and modifies the signal before relaying on to the gems ECU.
    The main reason for installation is the ability to switch to a different ignition map when changing over to LPG.
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  5. 21st March 2011, 06:18 AM #5
    Keithy P38's Avatar
    Keithy P38
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    Does it also control fuelling when on petrol or just ignition?
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  6. 21st March 2011, 07:39 AM #6
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    p38arover
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    Quote Originally Posted by Keithy P38 View Post
    Does it also control fuelling when on petrol or just ignition?
    Both. I had mine installed for ability to have dual ignition mapping, ie., altered ignition mapping for LPG. But Bruce Davis told me the mapping wasn't changed by the installer (not Bruce). I should go back to the installer and ask about it.
    Ron B.
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    2003 L322 Range Rover Vogue 4.4 V8 Auto
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    Previous: 1983, 1986 RRC; 1995, 1996 P38A; 1995 Disco1; 1984 V8 County 110; Series IIA



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  7. 21st March 2011, 02:36 PM #7
    Keithy P38's Avatar
    Keithy P38
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    Thanks Ron,

    Was looking into a piggyback since there are pretty much no power chips for Thor P38's, might look further into it now! It could be the alternative!

    Cheers
    Keith
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