emerald ECU,Trying to start engine.

emerald ECU,Trying to start engine.

Author
Discussion

robin377lotus

Original Poster:

12 posts

100 months

Thursday 29th December 2016
quotequote all
Hi, i did say in my original post,because i know that is a key piece of information. Solihull by landrover plant. B92. thanks

stevieturbo

17,229 posts

246 months

Friday 30th December 2016
quotequote all
I missed it.

And it would be wise to invest in a wideband and have it fitted before going any further.

They are so cheap these days, it's just daft to try and tune/daignose issues without one.

Anyone wishing to help you will need this installed and working on the vehicle.
For a V engine, ideally one per bank, but you could place the sensor after a collector after all cylinders merge, or just run off 1 bank and assume the other will be the same.

Naturally 1 per bank is best.

robin377lotus

Original Poster:

12 posts

100 months

Friday 30th December 2016
quotequote all
I did discuss this with emerald when i purchased the ecu,because i thought the same as you. I did weld the bosses in to the exhaust manifolds From what i remember they said you do not have to use one to run, but they could hook up one to map it.
Any way i have messed up by having it running,and adjusting the fuel trim, i pressed enter. Now when i look at the fuel,ignition and cold start pages.they all have zero in all boxes. So clearly i have done something wrong and lost all info.I take it they should not all read zero.
I now need to wait till emerald are open, in the new year. Will ask them to e-mail me the base map, as again another cock up not saved it to pc.

tapkaJohnD

1,930 posts

203 months

Friday 30th December 2016
quotequote all
Bert Smeets still owns the car, and drove it at Goodwood this year:

https://www.youtube.com/watch?v=kegx3XB54wA

John


Boosted LS1

21,165 posts

259 months

Friday 30th December 2016
quotequote all
Thanks John. Looks good doesn't it. Flat plane crank inside? I used to be the tr7/8 registrar many eons ago.

cptsideways

13,535 posts

251 months

Friday 30th December 2016
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Start with less fuel & work up has got to be the easier way. Only change one parameter at a time.

stevieturbo

17,229 posts

246 months

Friday 30th December 2016
quotequote all
cptsideways said:
Start with less fuel & work up has got to be the easier way. Only change one parameter at a time.
And always save the map before making any changes so you have a fall back.


To the OP, you're a newbie at this, buy that book and perhaps other books. They will give you a better understanding of what you're trying to do and for relatively little outlay.

There will be online resources too...but a good paper book is still hard to beat.

And get a wideband fitted.



robin377lotus

Original Poster:

12 posts

100 months

Friday 30th December 2016
quotequote all
The le mans tr7 is a fantastic car, pity it never qualified. Over 200mph in a tr7 in 1980, what a blast.
Anyway thanks for all the useful comments,looks like i may have to start reading.cry

robin377lotus

Original Poster:

12 posts

100 months

Friday 30th December 2016
quotequote all


some not very good pictures of my attempt at building a tribute to the le mans tr7, first engine was a rover v8, twin roto master turbos.

Boosted LS1

21,165 posts

259 months

Friday 30th December 2016
quotequote all
Could you post the pic up the right way?

I also used twin Rotomasters on my rover but with modified internals. Probably T3 stuff, Turbo technics did them. It was amazingly quick back in the day. I don't think my ls7 hybrid will be as powerful in n/a form. Good thing about TR7's are the cavernous engine bays :-)

robin377lotus

Original Poster:

12 posts

100 months

Saturday 31st December 2016
quotequote all
|http://thumbsnap.com/7W8y3Toy[/url]

every time i load the side image it turns upside down, its the right way on the pc. so loaded this one.
Have you got the Ls tr7 on the road? What ecu are you running? i would think it would be a tight fit, just like the 32v.Take the skin off my hands every time i work on it.

Boosted LS1

21,165 posts

259 months

Saturday 31st December 2016
quotequote all
About 15 years ago I fitted a TT 5.7 ls into the Tr but I never actually ran it. It cost so much to build I had to sell it on. Then I put my shell into storage until such a time as I could build another engine. I'm all fired up now and back on to it. I'll use the stock GM ecu for the first years running as I want simple plug and play. The ls7 uses an E38. As for engine fit, it's not much wider then a rover but it needs to sit in just the right place to clear the PAS. I've also folded over the transmission tunnel 'lip' as I initially installed a T56 and needed the space.

How long have you been working on your project? Drop me a pm if you like.

hidetheelephants

23,739 posts

192 months

Saturday 31st December 2016
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Boosted LS1

21,165 posts

259 months

Saturday 31st December 2016
quotequote all
Crikey, you have been working hard. Is it all fabbed in steel or have you borrowed some moulds?

robin377lotus

Original Poster:

12 posts

100 months

Saturday 31st December 2016
quotequote all
boosted i have sent you a pm.

Ive

211 posts

168 months

Tuesday 3rd January 2017
quotequote all
robin377lotus said:
I did discuss this with emerald when i purchased the ecu,because i thought the same as you. I did weld the bosses in to the exhaust manifolds From what i remember they said you do not have to use one to run, but they could hook up one to map it.
Any way i have messed up by having it running,and adjusting the fuel trim, i pressed enter. Now when i look at the fuel,ignition and cold start pages.they all have zero in all boxes. So clearly i have done something wrong and lost all info.I take it they should not all read zero.
I now need to wait till emerald are open, in the new year. Will ask them to e-mail me the base map, as again another cock up not saved it to pc.
Please read the ECU manual before you press any further buttons. it is avaialbe as a PDF on the emerald website. A bit rudimentary, but still necessary to read.

On the life screen any trims are immediately applied to the current map field and stay permanent when you press enter.

I suggest you do not use these trims but tune in the maps. Thing is that your changes are applied to the current field when you press enter. When since the change was made rpm or load changes, you manipulate the wrong field. life trimming is only useful under constant load and rpm, e.g. on a dyno with a constant wheel (hence engine) rpm enforced by a controller.

You first read the map form the ECU with the PC connected by pressing Ctrl-R or selecting load map form the menu.
then you change the map fields
and then your load the map back into the ECU by pressing ctrl-L or load map from the menu.

When it all reads zeros there is no map in the Emerald software on the PC. if you now apply this empty map to the ECU, the ECU will be also empty.
The emerald SW does not automatically copy or mirror its information into the laptop once you connected. The ECU is its own computer and your laptop is a server. All maps need to be loaded into the ECU before anything happens. The same is valid if the map is not loaded fro the hard drive of the laptop, but from the ECU. you need to read it from the ECU first.

If the ECU came with a preconfigured map, the first thing you do is to load it into the Emerald software FROM the ECU and safe it on the PC as your starting point.
Then you do map changes, load them onto the ECU and safe them under a new name on the PC. This way out can always revert back.

Maybe you should stick to the advice given by folks here and pull it onto a trailer and bring it to Emerald. Dave has very reasonable rates.


robin377lotus

Original Poster:

12 posts

100 months

Tuesday 3rd January 2017
quotequote all
Thanks for that info,I would love to take it to emerald and i am sure i will. For my own piece of mind i need it to run it up to temperature, and ensure the rest of the installation is ok, eg gearbox and final drive.
I appreciate that you have spent the time telling me, where i may have gone wrong.

robin377lotus

Original Poster:

12 posts

100 months

Friday 6th January 2017
quotequote all
Hi all, Dave from emerald has sent me a new base map, loaded it turned the key and fired first time, fantastic.
thanks for all the positive info.

tapkaJohnD

1,930 posts

203 months

Friday 6th January 2017
quotequote all
Dave Walker is a star!
John