MBE ECU Issue

MBE ECU Issue

Author
Discussion

Jabbah

Original Poster:

1,331 posts

168 months

Friday 3rd February 2023
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Recently got my cerb back from a body off refurb and first proper drive in it find that the right bank is not firing properly.

It's back at the garage now and they said that there is some corrosion in the ecu causing the issues. They say they have tried another ecu which solved the issues. They know someone with a spare that is willing to sell but price is quite steep.

So what are my options?

Are there places that can diagnose and fix the ecu?

Can the ecu be refurbished at MBE?

If I got a replacement MBE ecu can the tuning chip be swapped over or would it need a new tune? Would it matter if the replacement was a different revision?

Is it worth considering an Emerald K6?

Images supplied by the garage of the non working ecu:



gruffalo

7,848 posts

240 months

Friday 3rd February 2023
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your tuning chip should work but there are advantages to a more modern ECU.


CerbWill

689 posts

132 months

Sunday 5th February 2023
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Jody at Python Racing might be able to fix it. Some 941 components are no longer available but I think that's the injector or coil drivers. If yours is beyond repair you can put your map chip into another 941 or take your pick of the Emerald K6+ or MBE 9A9 depending on your budget.

spitfire4v8

4,018 posts

195 months

Monday 6th February 2023
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Yep some components are obsolete and might not be able to be updated to later versions .. how much were you offered an ecu for ? I heard of one tvr garage wanting 1000 pounds for an MBE a year or two back. I get a few old units from when i'm upgrading customer cars to the emerald ecu.

Jabbah

Original Poster:

1,331 posts

168 months

Monday 6th February 2023
quotequote all
CerbWill said:
Jody at Python Racing might be able to fix it. Some 941 components are no longer available but I think that's the injector or coil drivers. If yours is beyond repair you can put your map chip into another 941 or take your pick of the Emerald K6+ or MBE 9A9 depending on your budget.
Leaning towards the Emerald route atm, dwindling supply and unknown history of second hand units doesn't fill me with confidence.

Jabbah

Original Poster:

1,331 posts

168 months

Monday 6th February 2023
quotequote all
spitfire4v8 said:
Yep some components are obsolete and might not be able to be updated to later versions .. how much were you offered an ecu for ? I heard of one tvr garage wanting 1000 pounds for an MBE a year or two back. I get a few old units from when i'm upgrading customer cars to the emerald ecu.
The price offered was 1200. I think I emailed you earlier, but might be interested in an MBE if you had any available?

spitfire4v8

4,018 posts

195 months

Monday 6th February 2023
quotequote all
Replied .. plus I'm nowhere near 1200 pounds for an mbe !

Juddder

915 posts

198 months

Tuesday 7th February 2023
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If you need another route, reach out to Paul Smith @ http://pselectronicsolutions.co.uk/ who repaired two of my Cerbera Control Units for me recently

He should be able to easily replace the corroded chips and that strange daughter board (the white/grey board in your first photo) for you very economically

If you get really stuck I have a spare MBE ECU you are welcome to borrow to try out - we used for development when Aide was working on the Android tool - it's from a Straight 6 but should work with a V8 with the right ECU chip (I have a few)

Juddder

915 posts

198 months

Tuesday 7th February 2023
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re: your tuning chip yes you can just carefully unplug this and plug it in to the repaired or replacement MBE ECU

Yours is just a daughter board with a erasable EPROM (the chip with the insulating tape over the top which is where you erase it with UV if you need to) which will have your custom tuning maps burnt to it and the board it is piggy backed on decrypts the encrypted maps from the tuning software

I have the same on mine

Yours:



Mine:





If you ever need a hand decrypting it then I did that a few years ago :-)


Edited by Juddder on Tuesday 7th February 16:42

Byker28i

74,482 posts

231 months

Wednesday 8th February 2023
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Might be useful

Jhonno

6,036 posts

155 months

Wednesday 8th February 2023
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Perfect excuse to go Emerald!