SCS Delta iirc.
I am long past OEM ecu Ade. This is a SCS Delta 800 ECU and its already been mapped. I am going to be attempting to change the idle a little.
The ODB port is now defunct with the ECU. I cant use it. However it appears when I wiggle some wheres below where the ecu is in sometimes I can get it to stop staying live.
Its not fuse 11 ( alarm )
It still stays on.
They key feels a little loose in the ignition barrel. Could it have worn out?
I think its the MFRU from reading around.
There appears to be 4 relays and one is the ignition. I think this one is sticking on. Every 1 in 20 starts the car fails to start so I wiggle some wires and off it goes âŚ
I believe the lotus part number correlates to YWB100970 for the MRFU
I had a Corsa years ago that sometimes wouldnât switch off - I think the ignition barrel was full of gunk and it was sticking, canât remember now if I replaced it or managed to clean it out.
Funnily enough I get the feeling the ignition barrel in my 1998 Corsa was probably the same as what we have in our ExigesâŚ
Relay looks more likely though if youâre seeing weirdness by wiggling wires, hate electrical troubleshooting 
You are correct on it being a corsa b ignition barrel.
I am going to get a used relay thatâs been tested as known good and plug that in.
I also have a symptom of bouncing idle when cold. This is also a symptom of a failing MFRU as well apparently!
I have been experiencing a stange issue in my lotus for the past few months. Basically if you go out for a drive the ignition wont go off. The engine dies like normal but the power to the dash stays on. It shows the miles , fuel and backlights but you can take the key out and walk away. I think this is what sapped my battery as the car is solid voltage wise at the minute.
I have fixed it quite by mistake. I bought a MFRU ( multi function relay unit ) for a whole ÂŁ13.99 and didnt get any further than getting it out of the packet. I bought this as on the schematics it controls the ignition and I thought ( incorrectly ) that it might be the ignition relay sticking on.
It appears that when I have studied the electric schematics that there is a fuse that controls the immobiliser. I hadnt had any issues with it , but I know its part of the loop so to speak.
I removed the fuse and in fact all of the fuses in that cluster and placed them back in again.
Car now illuminated correctly and I heard a clunk when I turned off the ignition along with a light that went out.
Job jobbed.
So came round the doing the front offside hub today. I have had a wrestle with the bolts that have been in there since what I can only assume day dot. They came out with a bit of a fight and me doing popeye impressions.
Strangely one was 19mm the other two 20mm. That normal?
I have cleaned them up with a wire brush now.
I ultimately could not get the hub out. Its seized. I need a hub puller I think ( [mention]Fonzey[/mention] )
Car is now back together again
Few pics âŚ
I had eldest assisting me with spanners/sockets and youngest cleaning the inside of the wheels when off.
The mismatched bolts doesnât sound right, neither my Exige or Elise had that - all were 19mm (I think).
As youâre doing the front hub a puller wonât help much tbh, the puller that I have is for pushing the stub axle out on the rears. As itâs the front, you should just be able to brute force it off - either hammer on the back side of the face of it, or there are some small chisel/pry notches built into the hub itself though they might be covered/masked by rust by now. You could also put the bolts part in and smack the bolts in turn from behind with a hammer, but only if you have some spare bolts to use in case you mangle the threads.
Maybe see if you can spray in some penetrating fluid and leave it a few days, then come back to it and bray the arse out of it and it should come out. Maybe 
I have attacked it with brute force and ignorance. I had a 27mm socket over the back and smashed it a good few times. It went no where!
I dont have any spare bolts. I should order some
I didnt know about the pry marks. Ill take a look over the coming week. I have precious little else to do !
I had a real mission with my elise tbh, I think eventually I âwalkedâ it out by half screwing in the bolts and tapping (smashing) them around in sequence. Obviously once it goes, it goes - so make sure the youngâun isnât in the firing line or you might be joining the NHS queue with a half-child/half-machine 
The bolts go through the carrier though and then into the hub. Wont I shag the threads in the carrier?
I am favouring the bray it until I cry approach from the rear. Or might even make a leaver and turn the steering wheel?
Should be no threads in the carrier mate, just a ârawâ hole.
Iâll be honest I didnât check! I have ordered some new bolts so I like your idea of rotational braying
I think I expanded my hammer collection when doing this for the first time, so feel free to treat yourself to some new garage bling.
Ha! Iâll look up hammers, really big hammers and shiftyabastard hammers.
Think youâll need to get it off the car and onto a bench otherwise youâll be doing the ball joints no good.
Thats plan b @evo_ufo
Have been told that Lotus tend to put the 3 bolts back in to 5mm proud and go round wacking them until it cracks.
If I cant get them out Ill take the carrier off , send it away to be powdercoated and put the hub back in.
Today I fitted a light strip of LED flavour to my garage.
Removed my wheels and cleaned them along with arches. Running out of stuff to
do
Looks really good, and I really need your wheels. 
Seems our weekends have gone similar, wheels currently off mine waiting for some sonax to cure before they get a final layer of poorboys (or whatever it is I have lying around).
I also need to address garage lighting at some point, previous owners used my garage as home gym (weirdos) so it has a nice plasterboarded ceiling with an array of diddy downlights. Feels nice and homely, but not quite bright enough for working, or polishing as I found yesterday.