Emerald Connection Issue

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Recently fitted Emerald Management to my car. A friend did all the mapping via his laptop, everything was fine.

I got home and have tried to connect my Laptop, using the same Serial Cable my friend used. The software is saying there is No connection to the ECU. I tried changing the COM Port settings on the Software but made no difference.

With the ignition on the ECU Light is RED. With the engine running it is GREEN.

Any help will be appreciated

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r1ot said:

Also the ECU needs to be powered up to allow the the laptop to connect to it.

I am using a Serial to Serial cable. Both ends in the right place. I literally unplugged the mappers laptop, drove home and tried to plug mine in.

I have tried with the ignition on/off and the car running. I couldn't get it to work. Am thinking its a dodgey laptop connection. Will try with another one tomorrow hopefully. Thanks for your help

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Howitzer said:

we have a Baude rate set up in the governor and also on the laptop. If these numbers aren't the same, 9600 - 9600 etc, then it wont connect.

I think the laptop is definately the issue, as the ECU and cable have been proven to work.

I did a quick google on this Baud rate its it seems like a possible reason. Laptop is not in the best of conditions anyway. Will try to see what the Emerald Govenor is set to [not quite sure what it is but sure I can figure it out]

how would I go about changing this setting?

Thanks for the help so far.

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Steve just read your reply, will have a play with it now.

I just tried a second laptop and a 'Add New Hardware' wizard came up. Closed it as I assumed emerald software would take over. Still no-ECU link

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I tried the typing thing as you said on both laptops and got nothing. I would say its looking like a dodgey lead although one of the laptops did pick up the ECU in the form of 'new hardware'. And the lead was used for mapping.

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As far as I know I have tried all sorts of combinations. ECU and Laptop Off/on with cable plugged in/not plugged in, Car running, Ignition On/off.

What is the proper method of connecting the 2. Ignition On, Laptop On, Cable Connected, THEN open Emerald software?

Paraphrasing from the Emerald Manual
NO ECU LINK status appears when there is no power to the ECU or the coms lead is not plugged in.

There is power as the ECU light is on. Which means the 2 devices aren't talking to each other.

I noticed my ECU power was linked to my Immobiliser controlled ignition live. Although I have tried to take a reading with the engine running so this would have ruled out this as the cause

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tinker-27 said:

is it the correct software as k3 wont open older type ecus,also open the program ign on then connect the lead as it can scramble the laptop if it is connected first,

Spoke to Dave and he thinks its the other way round. Old software [like the ones on their site] cant access the K3, only the earlier M3Ds.

Does anybody have the install file. Already made a post in the caterham section