[g] Malfunction indicator lamp [MIL]

toolsplus Dec 1, 2019

  1. toolsplus

    toolsplus Well-Known Member I am in portugal

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    page 167 in the owner's manual

    MIL lamp is on sometimes,car will drive slowly,but worse uphill
    just wondering whether to risk driving to my local garage or get recovered [towing's illegal in Portugal]

    manual says; 'there's a problem in the engine electrical system,electronic engine control system or automatic transmission electrical system', but states you can drive carefully to the local dealer

    any ideas lads?

    cheers
     
  2. TONYCY11

    TONYCY11 Well-Known Member I am in cyprus

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    If you have a scan tool or tec stream try scanning the engine to see what code the it gives out for what the problem is , if you dont have a scan tool etc , if you have a tuning chip I would try disconnecting it then disconnect the battery's for 5 minutes to see if the engine light stays off , you could try disconnecting the battery's first to clear the engine light that could stay off and car drive normal again coz it seems car is in limp mode , if nothing is found to work with the above I would still drive it to your local garage if the car is not making unpleasant mechanical noises , in many cases mil (engine) light is for emission control (pollution) faults and not a engine about to blow up fault ,
     
    toolsplus and Higgy like this.
  3. toolsplus

    toolsplus Well-Known Member I am in portugal

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    thanks Tony
    unplugged the Tunit chip,batteries off during breakfast
    started as normal and the MIL has reset
    going for a drive now to see if all's well
    your post calmed me down,many thanks
     
  4. TONYCY11

    TONYCY11 Well-Known Member I am in cyprus

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    The problem with many performance chips is when switched on towards max setting for more power the 20% +/_ leeway the ECU allows in less or more fuel to be entering before it switches on the mil light and put the engine in limp mode is triggered by the ECU when the the car is accelerating and that 20% leeway is exceeded . I installed a ozbush fuel mapper that allows you to turn the call for more fuel to upto 15% or even down _15% for bigger fuel saving when cruising on a less weight load of passengers or luggage , I keep mine on neutral setting as I only fitted it because it allows you to fit a full egr blanking plate with out getting a mil light on the dash which in turn with pvc pipe vented to a oil catch can then vented to air give more power 17 to 24 bhp at cruising speed due to no activation of the egr gas and crankcase gas entering the engine so just clean oxygen enters , but more important stops gunge building up in the inlet tract , also the engine oil stays as clean as a petrol engine , so once cleaned no more cleaning is necessary . all adds up to a much smoother engine and longer engine life for the owner .
     
  5. TONYCY11

    TONYCY11 Well-Known Member I am in cyprus

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    If the mill light comes on without the tuning chip connected it could be a known common fault that the Turbo steppe motor electrical connections are dirty or loose , hope all is well .
     
  6. toolsplus

    toolsplus Well-Known Member I am in portugal

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    all good Tony,drives great as it always used to
    smoother,quieter but missing the performance,my Tunit chip was always turned to the max

    thinking about getting my ECU remapped
    what's your thoughts on that?

    cheers
     
    TONYCY11 likes this.
  7. TONYCY11

    TONYCY11 Well-Known Member I am in cyprus

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    Having the ECU remapped is expensive and can have a bad effect on longevity and reliability of the engine due to the fact that because of the cost of remapping the ECU company's that do it feel they have to give a BHP hike big enough to justify the price , all at the expense of engine longevity , many problems like cracked pistons , noisy engines and mil engine lights sending the engine into limp mode sometimes when you floor the gas peddle , and shorter life span of the engine , I have what you call a manual mapper made by ozbush in Australia where Landcruisers sell in big numbers so the Aussies have a better understanding of what works in the long term with out shortening the life of the engine or its reliability , a manual mapper remaps the ECU with in the tolerance of ECUs % of allowance which is 20% + or _ difference , and at a cost of 200 AUs dollars is great value for money , takes no more than 10 minutes to connect up is adjustable with a turn dial for plus for more power or minus for better fuel economy and quieter engine , as well as can be switched off by a switch in 1 second without having to spend the 10 minutes to disconnect it , having the ECU remapped is none reversible unless you spend big money to have it reversed , a big plus for the ozbush system is it allows you to fully blank the EGR valve at the cylinder head with a blanking plate with out the ECU giving out a Mil engine warning light as it tells the ECU the EGR valve is working and correct and allowing exhaust gas in through the inlet to go back in the engine even though it is not doing so , but its all upto you how you want to go .
     
    Last edited: Dec 2, 2019
    toolsplus likes this.
  8. toolsplus

    toolsplus Well-Known Member I am in portugal

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    thanks Tony,great answer
    i think i'll just stay standard,a bit slower acceleration,but i'll probably get there eventually

    talked to an experienced local mechanic today,he said that 'chips' seem to have a life span of about five years
    i've had mine for about 11 years so i've been lucky
    it's now in the bin
     
    TONYCY11 likes this.
  9. TONYCY11

    TONYCY11 Well-Known Member I am in cyprus

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    Good thinking these cars are not meant to be sport SUVs they were made to be tough long life vehicles , adding chips to boost power at the expense of durability and reliability defeats the idea of what these trucks are about , sure BMW X5s etc are faster but when 5 years of more they are money pits such is the poor durability of such cars when a few years old .
     
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