7 replies to this topic

[Scruffs]

Hi Guys,

I’ve a thread a level up from here talking about dropping an injection engine into an older car. Nothing’s scared me off so far so I’m essentially planning the budget/hunt for MPi bits/a scrapped car…

I just had an ECU/Immobiliser question I’m hoping one of you injection regulars could please help me out with…

I understand that the MPi MEMS ECUs are matched to the alarm ECU and it simply ain’t gonna play without the alarm ECU giving it a coded signal – i.e. simply grounding an ECU pin won’t make it run…

I understand my options are to either

(A) – get the fob, Alarm ECU and MEMS all from the same donor vehicle or

(B) – sack off the immobiliser by getting a dummy alarm ECU and get an uncoded ECU (link is SPi but I imagine the theory is the same?)? Are these available for the MPi? How much for? Can anyone give me some more info on this please?

I’d rather keep the immobiliser if possible. I'm not planning on using the an alarm yet though.

Thanks guys

Al

[L400RAS]

Hi Al,

The thread you linked to in section B is mine!

I didnt get my car working in the end - sold it as non runner, but anyway, the people selling the alarm / immobliliser bypass unit is minimail:

Minimail

They list 2 bypass boxes, but state for Spi, but they say these are for YWC10208 or YWC104040 - these are the part numbers off the alarm box itself.

HTH
Ryan.

[Bean]

Paul Raynes - of PRAutomotive. He's got everything you could need for MPi - Well, at least, he really came through for us when we put an MPi in my 1986 city! I'm not sure how active he is at the moment, though - He's a very busy man, lol. But he's still the one I'd go to for parts, first off!

We ended up getting a full MPi ECU/Alarm/Fob setup from him - We didn't realise that this was an issue before we started! D'oh!

If you need any help, just drop me a PM if you like - It's a very worthwhile conversion, in my experience. My mini's infinitely better with a rebuilt MPi engine - I absolutely love it.

[Sprocket]

Hi Al,

The thread you linked to in section B is mine!

I didnt get my car working in the end - sold it as non runner, but anyway, the people selling the alarm / immobliliser bypass unit is minimail:

Minimail

They list 2 bypass boxes, but state for Spi, but they say these are for YWC10208 or YWC104040 - these are the part numbers off the alarm box itself.

HTH
Ryan.

These little boxes do not bypass the ECU code system

[Scruffs]

Cheers for the replies

OK so if those bypass boxes exist for the MPi (which I don't see on minimail?) then I'll need to get a dumb engine ECU also, right?

And Bean you can definitely expect a PM just as soon as I stop trying to post on here, refill a printer and make mexican condiments at the same time!

Al

[mykweb]

You can use any MPi ECU + Alarm ECU and Fobs providing they all match.

It does not have to be the one that came from the donar cars engine.

The Mpi Alarm ECU is actually OK. You can get it top operate Central Locking and also Flash the hazards (only on a post Jan 98 Alarm ECU)

I recently bought an alarm ECU and ECU from a scrapped car as I thought mine was faulty. Turned out to be a dodgie Engine loom on the car ;(

Mike

[orcadian]

Hi,
I have used the whole of the ECU/immobiliser/alarm/key fob from a 1999 sportpack cooper in my clubman estate and so far (other than the suspension do-nuts) I am delighted with it. I had to make up my own injection pump mount for the van type tank and that's all ok. The IACV was smashed on the the damaged car I dismantled and the inlet manifold was slightly distorted at the head joint. I replaced the IACV and trued up the manifold face and included some thin spacers under the manifold nuts. Everything is fine and we attended the IMM2009 from here in Orkney. There is a section on my site about some of the work involved in building it.

[minimat]

Sme ecu repair companies such as the ecu doctor can modify ecu's to enable them to work without the alam,immobilisor if you send it to them,useful on all older cars with troublesome alarms or missing remote fobs.