32 replies to this topic

[1995 MK2 IOM]

I have got a "new" ECU because I was told that my ECU could be broken... MAP sensor related...

the "new" ECU came from a 1996 SPI 1275 - Mine's a 1995 1275 SPI

when I connected it up, everything seemed ok, it reset fine etc but then when I started it up... it started for a second then cut out... now will turn over but not start... I put my own ECU back on and it started straight away...

Anyone have any ideas why it wont work with the "new" ECU?

Cheers

J

Edited by 1995 MK2 IOM, 12 February 2011 - 08:02 PM.

[minisilverbullet]

For the fear of asking a stupid question..... it came with the immobiliser fob right? (if the immobiliser is integrated into the ECU, pretty sure it is)

[L400RAS]

Please post the model number of the ECU (will start with MNE)

All ECUs start MNE 101 (mini)
Next digit: 1= with immobiliser, 0 = "uncoded
Next two digits 50 = non cooper, 70 = cooper)

So if you did not want to swap the alarm with the ECU, you should have bought MNE 101050

Edited by L400RAS, 25 January 2011 - 11:43 AM.

[wardyxxx]

But if the immobisler is active, the engine wouldn't even turn over?! Mine doesn't (1996).

[minisilverbullet]

But if the immobisler is active, the engine wouldn't even turn over?! Mine doesn't (1996).

Yeah thats right, to be honest it has been months since I drove my mini!

[wardyxxx]

But if the immobisler is active, the engine wouldn't even turn over?! Mine doesn't (1996).

Yeah thats right, to be honest it has been months since I drove my mini!

Ahhh, but absence only makes the heart grow stronger!!!

[Ethel]

Can you hear the fuel pump, do the plugs spark...
I take it you've reset your immobiliser when you refitted your own ECU, could you test it without the reset - maybe there's another fault and the immobiliser isn't cutting the starter at all.

Might be easiest to send it back and get another.

[1995 MK2 IOM]

Please post the model number of the ECU (will start with MNE)

All ECUs start MNE 101 (mini)
Next digit: 1= with immobiliser, 0 = "uncoded
Next two digits 50 = non cooper, 70 = cooper)

So if you did not want to swap the alarm with the ECU, you should have bought MNE 101050

its a bit scratched... but looks like its MNE 101150?

Cheers

J

[wardyxxx]

Next digit: 1= with immobiliser, 0 = "uncoded

Suggests you do indeed need the fob paired to that ecu unit if L400RAS if right. Which I think he is.

[1995 MK2 IOM]

Next digit: 1= with immobiliser, 0 = "uncoded

Suggests you do indeed need the fob paired to that ecu unit if L400RAS if right. Which I think he is.

Forgot to add, I do have a fob that is paired with the "new" ECU.

Cheers

J

[minisilverbullet]

Assuming the ECU is good, Have you pulled or not reconnected a vaccum pipe? And or - I am sure there is an earth strap between the body and the ECU bracket, is that refitted?

[1995 MK2 IOM]

Assuming the ECU is good, Have you pulled or not reconnected a vaccum pipe? And or - I am sure there is an earth strap between the body and the ECU bracket, is that refitted?

I thought I had connected everything back up right... I reconnected the old one and it fired up straight away... so earth strap must be ok etc...

the lad I bought it off (from the forum) said it was working fine when he took it off his car...

maybe I will try it again and try again... it wont do any harm keep trying will it?

if the ECU is reset, does that mean that it wont "remember" the previous car, so it should learn all the settings etc again?

Cheers

J

[Sprocket]

The MNE101150 ECU is a coded ECU. It should be paired to an alarm ECU with the same code. The fob is then paired to the alarm ECU.

This means that if you change any one part, the imobilser/ alarm will not fully function.

If you replace the engine ECU only, with one that does match the same imobiliser code as the alarm ECU, the alarm will still function but the engine will be permenantly imobilised.

If you replace the alarm ECU only, with one that does not hmatch the same fob code and engine ECU code, the alarm will not function and the engine will be permenantly imobilised.

If you replace the fob only, with one that does not match the alarm ECU, the alarm will not function and the engine will be permenantly imobilised.


If you still want to keep the imobiliser and alarm function, you need to fit a matched set of alarm ECU, engine ECU and fob. Fail to do this and it just wont work.

You can just fit one of these parts, but you n=then need the services of a specialist to recode the system to get everything to see the right codes.

Remind me again. You have a 1995 car that is fitted with the factory fit alarm/ imobiliser system with the ECU MNE101150? and you have installed a different ECU with the same MNE101150 code? You say the ECU came with a fob? but what about the alarm ECU that is mached to the 'new' ECU? Where is that?


From the information I get from this topic, this is nothing more than a coding issue

[wardyxxx]

Just remembered that you have an alarm ECU too that links to the engine ECU.


Oh, wait. Just read sprocket's post.

[1995 MK2 IOM]

Thanks for the reply.

So I also need to get the alarm e c you from the same car too? Where is that and where would I Find it?

Cheers

J