Diagnostic problems

[M50GRF]

My laptop can't connect to the ecu on my tuscan, I have a serial to usb adaptor and lead I bought from steve heath and software from 'MY Tuscan' website.
Can someone give me a guide on what todo in case I'm doing something wrong

[blueg33]

M50GRF said:

My laptop can't connect to the ecu on my tuscan, I have a serial to usb adaptor and lead I bought from steve heath and software from 'MY Tuscan' website.
Can someone give me a guide on what todo in case I'm doing something wrong

Have you installed the drivers for the usb to serial adaptor?

[SteveTusc]

You have to set it to com port 1 on your laptop. If you've installed the drivers that would be my next check.

[nrick]

Hi

Not all serial usb convertors will work, I had one that wouldn't £3 from ebay and all sorted. I now have it up and running and I'm not far from you (I think?) If you need any help.

Have you got the latest software from GV website? Should be a yellow cerb on the front screen.

Check USB is on COM 1 as it isn't normally there (mine was on 5), need to go to device manager, select the device properties etc.

Then you should be all good.

[blueg33]

nrick said:

Hi

Not all serial usb convertors will work, I had one that wouldn't £3 from ebay and all sorted. I now have it up and running and I'm not far from you (I think?) If you need any help.

Have you got the latest software from GV website? Should be a yellow cerb on the front screen.

Check USB is on COM 1 as it isn't normally there (mine was on 5), need to go to device manager, select the device properties etc.

Then you should be all good.

I had a cheapo ebay adapter that didnt work.

nrick, a few weeks ago you sugessted we could meet up to try a heater ecu swap, if you are still up for that it would be useful to give it a go. It would be good to see your car too. Are youaround Gloucester towards the end of the week?

Nick

[nrick]

Hi

Car up on axle stands at the moment, long story but I'd thought I might be able to get a few odd jobs done. If I get chance I'll see if I can finish it before the end of the week.

[M50GRF]

Thanks for replys
I've managed to change to com 1 But still can't connect to ECU.
Are you using the 3 pin connector in drivers footwell or going direct to ecu

[SteveTusc]

Just checking.... you have disabled the immobiliser haven't you?

[karlx]

Hi,

If this helps - you need to have the ignition on, also I find it always connects when the fuel pump primes - then the software /comms should connect.

Thought I mention this, as it took some digging through the forums to figure what I was missing out. Thankfully I have an old laptop with a serial port... so I don't have the issue of USB to serial.

Hope this is of some use.

Karlx.

[nrick]

3 pin for me, ignition on. What operating system are you running.

Xp is best, but will work on other systems. Need to make the .exe file xp compatible

[blueg33]

nrick said:

Hi

Car up on axle stands at the moment, long story but I'd thought I might be able to get a few odd jobs done. If I get chance I'll see if I can finish it before the end of the week.

OK there is no rush, it would just be useful to be sure its the heater ecu before I send it off repair.

[12Esc]

I had the same problem connecting to ecu via the three pin connector. The only way to get it working was to use the nin-pin serial direct to the ecu. I have installed a 9-pin cable permanently in the car (removed the housing of the connector on the ecu side, made a small hole in the ecu housing).

[nrick]

blueg33 said:

OK there is no rush, it would just be useful to be sure its the heater ecu before I send it off repair.

More than welcome to come down to the forest, will be around on Thursday till 2 ??

PM if you fancy a trip down in every evening as well.

[blueg33]

nrick said:

More than welcome to come down to the forest, will be around on Thursday till 2 ??

PM if you fancy a trip down in every evening as well.

Thanks for the offer, unfortunely I have a lunch meeting in Cheltenham on Thursday otherwise I would have said yes.

I will pm you about something next week as a possibility, i cant access my home emails until the morning.

Nick

ps. Is that a horribly corroded plug extender on your pic?

[nrick]

Hi Nick

Yep Plug lead no3

Still ran well ?, just doing some routine maintenance, though looking at the weather today may have been a mistake.....

Thanks

Neill

[blueg33]

nrick said:

Hi Nick

Yep Plug lead no3

Still ran well ?, just doing some routine maintenance, though looking at the weather today may have been a mistake.....

Thanks

Neill

TVR Power just did my routine maintenance - Ouch!

Lovely day, but I am stuck in London, will use the car to go for lunch tomorrow though

[M50GRF]

Tried all of above but still wont connect
I think I'll have to try direct to ECU but where is it
software is from my tuscan website, what is GV website?

[nrick]

Graham valley, if you google it should come straight up.
Have to go to down to south wales on Monday if you are around.

[M50GRF]

Thanks for GV link I'll download and try on weekend

[dlewis]

Have you looked for a lead on the passenger side on a 2003?

Dave