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markw

Emerald K6 - "no Ecu Link"

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markw

Hi,

Has anybody else had issues connecting to an Emerald ECU with a serial port to USB adapter

I have bought 3 now, and none of them have worked, the latest one is direct from emerald, and even that one doesn't work

I have followed their online instructions and found the "new" coms port, but still get the dreaded "no ecu link"

 

Can anyone help me please

 

Thanks

 

Mark

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jackherer

Is the 9 pin serial cable an Emerald one? They are wired differently to all other serial leads annoyingly.

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markw

Right, I have contacted Emerald, and they gave me some instructions to follow, checked pins 11 and 28 for power

(both as they should be) and then I did a continuity test on the cable, and out of 9 pins only 1 gave off a "tone" on my meter

 

Should all the pins "tone" out??

 

thanks

 

Mark

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markw

Thanks Jackherer

Checked that out and the cable is fine

 

Now what can it be??

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jackherer

Can you borrow another laptop? Rather than trying to troubleshoot a load of settings or conflicts install the correct usb > serial adaptor on a 'fresh' laptop and see if that works.

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markw

Jackherer,

Amazingly that has done the trick, I borrowed a pals 4year old HP and it connected straightaway,

Now back to the original problem, The car runs like a bag of poo, until it is warm, and with the tiniest of throttle inputs

it will stall,

The ecu is seeing the water temp at 80 degrees even though the car hasn't run for a week, I changed the sensor for a Bosch

item and it is still seeing 80 degrees, so then I unplugged the sensor all together and it is still seeing 80 degrees???

Any ideas what I can check now??

Thanks

Mark

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welshpug

check the wiring.

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jackherer

As above but start with the plug that goes onto the sensor, the pins can get pushed back into the housing so even though it goes onto the sensor well the pins aren't actually making contact, if they're OK it's just two wires straight to the ECU plug so it wont be hard to find.

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markw

Jackherer,

Started at the sensor end, pins seemed ok, did a continuity test from the plug to the ecu, no circuit,

pulled the rubber back on the plug and BINGO, one of the wires had broken just after the crimped section,

bodged it together and it worked, Water temp reading 14 degrees now, couldn't get the pin out so I am going to

order a new plug

 

Thanks both for all of your help

 

Mark

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