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Thread: Earth Modification - It really does work

  
  1. #1
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    Earth Modification - It really does work

    This is one lesson i have learnt the hard way, so thought i would share it with you so you can avoid my mistake.

    The 'Earth Mod' has been around for some time, with many owners benefiting from rectifying what can only be described as a crap wiring job by Vauxhall.

    My car has suffered from irratic idling for some time, but not to the extremes that some owners have experienced. And over this time i have replaced the following to know avail:


    1. AFM
    2. Coilpack
    3. Put standard water thermostat back in
    4. Iridium plugs, then Cossie plugs, then back to irdiums
    5. Coolant sensor

    The coolant sensor was changed only yesterday, and in order to fit it, you need to move wires out of the way. Happens to be the same group of wires which the earth mod is for. By disturbing the wires, i made the standard 'earth crimp' even worse, hence today i have carried out the earth mod.

    The results are as follows:


    1. Perfect idle: 750rpm
    2. Perfect cold start and tickover when warm
    3. Consistent coolant temperature of 82degrees
    4. Average miles per gallon has increased by 8!

    Total cost = 3 inches of decent wire and solder.

    I never considered doing the Earth Mod before, as i was told that post 2003 cars were fine, this is obviously not the case.
    FYTuning Ltd - Coming Soon

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    lawton's Avatar
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    i need to do this myself but not very good with wiring and not exactly sure what wires i need to do etc, any pics mate?

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    MeasorPaul's Avatar
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    As above I have few probs this may help with. How do you do it and any pics or info how to do it would be great
    Astra Coupe Turbo
    Custom Stage 3.5 330bhp 340ft lb VXR Pop Bang Map with Ignition Cut Limiter

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    try google!!!

    or just search on here - ive posted links plenty of times, now try searching yourself guys!

    the original link on here or at least the pics on it have since expired, but fairly sure later on in that particular thread is a link to a how-to on mig.


    come on ... use your heads and search

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    http://cgi.ebay.co.uk/Subaru-Blue-Re...item4aa8a2138f

    Something like that? Is that the 'earth mod' ?

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    ok then....looks like ill be waiting for hell to freeze over before anyone uses the search function these days!

    Original AOC how-to: http://www.astraownersclub.com/vb/sh...d.php?t=117185

    Original MIG how-to: http://www.migweb.co.uk/forums/engin...ml#post3392904


    Location of said wiring:





    * the amount of linkbacks on mig thread shows just how many times this has been mentioned on aoc.....

    isnt searching great

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    I striped mine down and still didnt no what to we need pics of it step by step for the thick t*ats i.e me lol

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    Once you have removed the plastic wrapping and uncovered the wires, you will see a black strip, with two small brown wires coming out of each end. It is this black strip you remove and replace with a new piece of wire. The new wire is nothing special, mine came from maplins.
    FYTuning Ltd - Coming Soon

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    Ur the man lol, i got to that point an thought oh its already been done lol

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    What thickness of wire u used

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