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Specialist Components Spi Plug & Play With 2 Plug Ecu


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#1 cmonson

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Posted 26 April 2018 - 10:37 PM

I have a 1991 SPI - I think it was originally spec'd for Germany.

 

A few years ago I picked up a Specialist Components Plug & Play ECU.  The SC ECU has the standard big plug.  My SPI is an early one and has 2 plugs.  The standard big plug and a smaller one with just 3 wires.  I am just now getting around to wanting to install it.

 

According to the website you can move the 3 wires over to the big plug.  

 

Problem, in the last few years I have moved a few times and I cannot find the instructions on what pin locations to move the 3 wires too.  

I have reached out to SC multiple times to have them re-send it.  To date all I have received is just a few random pics of a wiring harness.

 

I did find a did notes.

 

Green = 18
Grey = 7
Black = 29

 

The color references the color of the wire in the small plug.  The number references the position of where to relocate that wire in the big plug.  Green and Gray are no problem as those 2 pins are open on the big plug.  

It's that last one that is concerning me.  On the big plug pin location 29 already has a wire in it.

 

I am assuming that they may both be ground wires and I could just splice them together.  But, I am not 100% sure.

 

Anybody know?

 



#2 Lord Oversill

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Posted 26 April 2018 - 11:23 PM

Hi,
Not so sure this will help..I have an early Spi with the SC ecu ( twin plug) I had problems with the set up and they provided me with the following pictures. I cannot help much more as I am electrically retarded.[attachment=194815:681D486B-DACC-4191-A7E2-F7757A71795C.jpeg][attachment=194816:10D1B7FF-EE84-403D-9D95-5BFD599C47B4.jpeg][attachment=194817:F5A923AB-D243-42DC-A89F-423C025B4762.jpeg][attachment=194818:ECD3BA83-E485-444F-B0C6-B095E98903E9.jpeg]

#3 cmonson

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Posted 27 April 2018 - 02:26 AM

Those are the same pics that they sent me.
The Grey and Green wires make sense.

Just not sure about the black one.

#4 tmsmini

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Posted 28 April 2018 - 02:10 PM

Chris: Sorry to see you did not get the clarification you needed. Do you have the Rover ECU electrical diagram for your year?

 

The forum has a thread with most diagrams:

http://www.theminifo...agrams-redrawn/

 

There are some differences in the SPi over the years of production aside from the ECU plugs.

Terry

 



#5 Steve220

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Posted 29 April 2018 - 08:27 AM

SC is a company that needs a royal kick up the bum in terms of their guides, standard maps, pin output diagrams and their overly confusing 'modern' website. When speaking to them at shows, they say they pride themselves on after-market care, yet most people complain about their lacklustre attitude on the phone or ignoring emails.



#6 Northernpower

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Posted 29 April 2018 - 09:02 AM

SC is a company that needs a royal kick up the bum in terms of their guides, standard maps, pin output diagrams and their overly confusing 'modern' website. When speaking to them at shows, they say they pride themselves on after-market care, yet most people complain about their lacklustre attitude on the phone or ignoring emails.

Sad to say, I agree. They were very good but they seem to have lost focus. Their new website is a complete abomination and while they may have some very good products their support does not exist unless you know who to speak to directly.



#7 Steve220

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Posted 29 April 2018 - 09:53 AM

They could be a great company, but sadly they have gone the way of many others. Larger projects taking the limelight and the smaller products getting less aftercare. Im sure if you asked about their supercharge set up theyd be all over you.

#8 Foobah

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Posted 17 May 2018 - 09:50 PM

Is there anyone out there who has got the SC ECU to work properly? We are in a world of frustration! 

Initial gut feel is that the map is wrong/inappropriate/unmatched ... Initially it was running super rich. We changed the supplied plugs and fitted different HT leads. Big improvement, but now the center 2 pistons are running lean, ouside 2 rich?

Please help if you can BUT we are at our wits end with this and ready to set fire to it, so please folks, just helpful, proactive stuff in reply if you can please - thanks a million.



#9 cian

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Posted 18 May 2018 - 05:37 AM

When I got mine the base map was wayyyyyyyy out car would t even start, but once turned on a rolling road it went great

#10 Northernpower

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Posted 18 May 2018 - 08:27 AM

I thought SC were going to set this up on their dyno for you? If they did, they should have a copy of the map. My first option would be to ring them. Failing that you need a very patient rolling road tuner because they take a long time to set up.



#11 Foobah

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Posted 18 May 2018 - 02:34 PM

Thanks all.

Graham - they did! And on sending the map back to them they feel it is as it should be. Everything is new engine side of the dash. It feels like its an HT lead/Splug problem, but they are all new too and the SP's were supplied by SC. I was sent a video of what should be my engine running on their bench dyno. I also got the dyno results from SC and the figures/graph are great - just what I wanted. The bloody thing just will not work in the car.  We have touch absolutely nothing engine wise.

We've been pushed on to the manufactures of the ECU (who were thoroughly pleasant and helpful).

Fortunately John at Burnt Orange Garage who is doing this for me is really knowledgeable around the lambda/ECU/electronics piece as well as the general mechanicing. Without him I would be royal buggered.

Any wisdom would be gratefully received.



#12 Northernpower

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Posted 18 May 2018 - 04:02 PM

Just thinking outside the box. Are you running the SC LCB and the wide band Lambda? If so, where have you got it fitted and how have you sealed the joints?



#13 Foobah

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Posted 19 May 2018 - 08:19 AM

We've got a new and decent bosch lambda in.

It is the SC LCB and it's fitted in the housing that's part of the LCB near to the top of the manifold. We havent fitted a second (there's provision for a second in the LCB under the car but Im not sure how we would wire that in?).

I hadn't considered sealing the lambda? What should I use for that?

The ECU guys said (from memory) it should be set to narrow band. Do you think that would make a difference?

Thanks as always.



#14 Northernpower

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Posted 19 May 2018 - 08:34 AM

PM sent



#15 tmsmini

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Posted 19 May 2018 - 02:42 PM

If you have the SC lambda sensor, it is not narrow band. It is most likely a Spartan II wideband controller with a Bosch sensor and needs to set as such. If you are using the standard Rover lambda sensor(or Bosch replacement equivalent), then it is narrow band.

 

It would probably be best if this were in  separate thread as the specifics may be different. Maybe an admin can do that.

 

Which installation type is this? SPi ECU only, SPI ECU and throttle body or MPi?

What ECU, Delta or Typhoon?

 

I have a running system, but my specifics are not typical.

Terry


Edited by tmsmini, 19 May 2018 - 02:45 PM.





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