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Old 09-22-2005, 13:01   #1 (permalink)
al
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omvl millenium

Hi
I have just finished fitting omvl millenium in my 3.9 discovery got to the
bit where you have to program it problem is I cannot get it to stay running
on lpg it switched for a second or so and then immediately reverts back to
petrol.The car has been running for 2 years previously on lpg so no problem
there.Where does the millenium get the signal from to detect engine running
is it solely from the tacho cable or is there something else that I have
missed? Any help would be appreciated

Thanks Alan


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Old 09-22-2005, 13:01   #2 (permalink)
Lee_D
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Re: omvl millenium

"al" <alanpbrown(nospam)@dsl.pipex.com> wrote in message
news:xdmdnbLKJoULZa_eRVnyjw@pipex.net...
> Hi
> I have just finished fitting omvl millenium in my 3.9 discovery got to the
> bit where you have to program it problem is I cannot get it to stay
> running on lpg it switched for a second or so and then immediately reverts
> back to petrol.The car has been running for 2 years previously on lpg so
> no problem there.Where does the millenium get the signal from to detect
> engine running is it solely from the tacho cable or is there something
> else that I have missed? Any help would be appreciated
>
> Thanks Alan


Dunno about yours but my Bigas system picks up the engine revs off the
negative side of the coil. A brown wire in my case , which recently fell off
and gave the same symptoms as you now have.

Lee D


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Old 09-22-2005, 14:01   #3 (permalink)
Badger
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Re: omvl millenium


"al" <alanpbrown(nospam)@dsl.pipex.com> wrote in message
news:xdmdnbLKJoULZa_eRVnyjw@pipex.net...
> Hi
> I have just finished fitting omvl millenium in my 3.9 discovery got to the
> bit where you have to program it problem is I cannot get it to stay
> running on lpg it switched for a second or so and then immediately reverts
> back to petrol.The car has been running for 2 years previously on lpg so
> no problem there.Where does the millenium get the signal from to detect
> engine running is it solely from the tacho cable or is there something
> else that I have missed? Any help would be appreciated
>
> Thanks Alan


Brown wire should be connected to the coil -v to give it an rpm signal, also
make sure you have told it the correct rpm signal type, number of coils,
lambda probe type etc. If all that is ok, run engine at 3000rpm, change over
to gas and watch computer screen on display mode and see what the actuator
and lambda probe is doing. If it is running lean on the probe and also
reducing the stepper position, then you need to tell it the probe is
inverted, i.e. 1-0v instead of 0-1v. If memory serves me correctly, the
lambda probe ought to be 0-1vstd, not square-wave. Tell it also to switch
over during decel at 2000rpm initially until you get it setup. Should cal
itself at 3000rpm, then you adjust idle bleed to get it in correct band at
idle.
Badger.


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Old 09-24-2005, 11:01   #4 (permalink)
al
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Re: omvl millenium

Al
"Badger" <brianhatton@btinternet.com> wrote in message
news:dguvmk$svt$1@nwrdmz03.dmz.ncs.ea.ibs-infra.bt.com...
>
> "al" <alanpbrown(nospam)@dsl.pipex.com> wrote in message
> news:xdmdnbLKJoULZa_eRVnyjw@pipex.net...
>> Hi
>> I have just finished fitting omvl millenium in my 3.9 discovery got to
>> the bit where you have to program it problem is I cannot get it to stay
>> running on lpg it switched for a second or so and then immediately
>> reverts back to petrol.The car has been running for 2 years previously on
>> lpg so no problem there.Where does the millenium get the signal from to
>> detect engine running is it solely from the tacho cable or is there
>> something else that I have missed? Any help would be appreciated
>>
>> Thanks Alan

>
> Brown wire should be connected to the coil -v to give it an rpm signal,
> also make sure you have told it the correct rpm signal type, number of
> coils, lambda probe type etc. If all that is ok, run engine at 3000rpm,
> change over to gas and watch computer screen on display mode and see what
> the actuator and lambda probe is doing. If it is running lean on the probe
> and also reducing the stepper position, then you need to tell it the probe
> is inverted, i.e. 1-0v instead of 0-1v. If memory serves me correctly, the
> lambda probe ought to be 0-1vstd, not square-wave. Tell it also to switch
> over during decel at 2000rpm initially until you get it setup. Should cal
> itself at 3000rpm, then you adjust idle bleed to get it in correct band at
> idle.
> Badger.
>

Thanks for the replies have now got unit running ok.Looks like it was a bad
earth connection on the black wire, seems to be running pretty good on this
unit only fault is it sometimes stalls when decelerating .It could be the
air bypass playing up again I think as disply shows nothing strange


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Old 09-24-2005, 11:01   #5 (permalink)
Badger
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Posts: n/a
Re: omvl millenium


"al" <alanpbrown(nospam)@dsl.pipex.com> wrote in message
news:KaadnUPstPUg7qjenZ2dnUVZ8qWdnZ2d@pipex.net...
> Al
> "Badger" <brianhatton@btinternet.com> wrote in message
> news:dguvmk$svt$1@nwrdmz03.dmz.ncs.ea.ibs-infra.bt.com...
>>
>> "al" <alanpbrown(nospam)@dsl.pipex.com> wrote in message
>> news:xdmdnbLKJoULZa_eRVnyjw@pipex.net...
>>> Hi
>>> I have just finished fitting omvl millenium in my 3.9 discovery got to
>>> the bit where you have to program it problem is I cannot get it to stay
>>> running on lpg it switched for a second or so and then immediately
>>> reverts back to petrol.The car has been running for 2 years previously
>>> on lpg so no problem there.Where does the millenium get the signal from
>>> to detect engine running is it solely from the tacho cable or is there
>>> something else that I have missed? Any help would be appreciated
>>>
>>> Thanks Alan

>>
>> Brown wire should be connected to the coil -v to give it an rpm signal,
>> also make sure you have told it the correct rpm signal type, number of
>> coils, lambda probe type etc. If all that is ok, run engine at 3000rpm,
>> change over to gas and watch computer screen on display mode and see what
>> the actuator and lambda probe is doing. If it is running lean on the
>> probe and also reducing the stepper position, then you need to tell it
>> the probe is inverted, i.e. 1-0v instead of 0-1v. If memory serves me
>> correctly, the lambda probe ought to be 0-1vstd, not square-wave. Tell it
>> also to switch over during decel at 2000rpm initially until you get it
>> setup. Should cal itself at 3000rpm, then you adjust idle bleed to get it
>> in correct band at idle.
>> Badger.
>>

> Thanks for the replies have now got unit running ok.Looks like it was a
> bad earth connection on the black wire, seems to be running pretty good on
> this unit only fault is it sometimes stalls when decelerating .It could be
> the air bypass playing up again I think as disply shows nothing strange


make sure overrun cut-off isn't set to too low an rpm, try and bias the
system to be rich at idle naturally without the lambda correction, that
helps.
Badger.


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