Ben_Copeland
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| posted on 19/11/11 at 07:32 PM |
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Converting MS1 to MS2
Does anyone know of a definative guide on how to convert a MS1 V3 to MS2 V3?
I've already got the MS2 daughter board so is it just a case of swapping the chips and changing firmware?
Thanks
Ben
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big-vee-twin
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| posted on 19/11/11 at 07:43 PM |
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Yes, you may as well install the Extra code while your at it
see here link
Duratec Engine is fitted, MS2 Extra V3 is assembled and tested, engine running, car now built. IVA passed 26/02/2016
http://www.triangleltd.com
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ashg
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| posted on 19/11/11 at 08:06 PM |
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there is also a link wire you need to cut out. cant remember the exact one but if you dont cut it out it will blow up the new processor
edit... sorry its the other way round you need to add a 12v link wire but make sure you remove it if you go back to ms1 or you will blow the ms1
chip.
[Edited on 19/11/2011 by ashg]
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Ben_Copeland
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| posted on 19/11/11 at 08:18 PM |
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Cheers guys. I'd read about the 12v wire. Wasn't sure if there was anything else that needed doing.
Ben
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big-vee-twin
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| posted on 19/11/11 at 08:19 PM |
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Think that is the 12v feed jumper you install if you fit an optional IAC with the MS2.
You cut it out if you go back to using MS1.
However if you dont have an IAC then it is not an issue.
Duratec Engine is fitted, MS2 Extra V3 is assembled and tested, engine running, car now built. IVA passed 26/02/2016
http://www.triangleltd.com
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rachaeljf
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| posted on 19/11/11 at 08:22 PM |
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'Tis the other way round. With MS2 you get a driver chip on the daughter board for stepper motor idle valves. This needs 12V, which you provide
by adding a link between 12V and one of the 40 pins on the main board's processor socket. IF you go back to MS1 for any reason, you must remove
the 12V link or you will damage the MS1 processor.
Cheers R
Edit - waay too slow as usual.
I believe you can do without the 12V link but it makes the stepper motor driver run hot, so it is advised to add the link even if you don't
intend using a stepper motor IAC.
[Edited on 19/11/11 by rachaeljf]
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matt_gsxr
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| posted on 20/11/11 at 08:52 AM |
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If you bend the leg on the MS1 chip that would go to the new 12V input, then if you ever put it back in (unlikely in my mind) then you will not blow
the chip.
There is a fair amount of retuning between MS1 and MS2, but it is well worth the effort.
Matt
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Ben_Copeland
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| posted on 20/11/11 at 10:37 AM |
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All installed now... Seems to be connected to laptop etc. A lot more menus in TuneStudio now too, which i think is a good thing.
Coolant temperature setting is being a pain, seems i dont have the original bias resistors in my MS. Trying to work out their values. Does the
colour bands on bias resistors mean the same valves as normal resistors? cant see any mention of them on the colour codes.
Ben
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rhinopower
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| posted on 20/11/11 at 02:04 PM |
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Where did you get the processor from and how much?
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Ben_Copeland
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| posted on 20/11/11 at 02:07 PM |
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Ashg got it for me when he was over in america.
Straight from DIYAutoTune. I've had it a while now, so not sure on prices.
Ben
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GeoffT
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| posted on 20/11/11 at 02:30 PM |
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I ordered mine (around 3months ago) from Diyautotune. With the cheapest postage option it came to around £67, far cheaper than any uk supplier I could
find at the time. Landed on the doormat about 10 days later IIRC, so no complaints from me on their price or service.
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matt_gsxr
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| posted on 20/11/11 at 11:41 PM |
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I did the same as Geoff.
The local UK chap who does megasquirt (James?) doesn't supply just the MS2 boards. It is too easy to blow them up (according to him) that he
doesn't like to risk it.
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