Reading error codes on an early 3200GT

redsonnylee

Centenary Club
Messages
1,256
Hi Tony,
I bought the correct cables from scantool,part #kkl316. The three pin cable has a red wire with a crocodile clip. Am I correct that this must be connected to the positive of the car battery ? I previously assumed there would be a negative connection on this cable,so the negative connection must be one of the three pins ?
Yes positive, you’ll see from the photo above I extended the black cable so the crocodile clip could reach the boot. (Note that yahoo were closing the group for KWP back in October ). I think they don’t want to support free groups any more.
 

MRichards

Junior Member
Messages
131
Hi Tony,
Maybe I didn't explain it quite well. The three pin cable has just one red wire with a crocodile clip. There is no black wire with a crococdile clip.
 

redsonnylee

Centenary Club
Messages
1,256
Hi Tony,
Maybe I didn't explain it quite well. The three pin cable has just one red wire with a crocodile clip. There is no black wire with a crococdile clip.
Here’s a photo of the red wire, sorry, I should have said I extended this with a long black cable in order to reach the battery in the boot. Apart from the extension your cable should be the same.
 

Attachments

MRichards

Junior Member
Messages
131
Hi Tony,
I'm still not happy with the setup but I have this readout,"2807 echo nothing/error " I take this to mean that there are no real errors ? Please confirm.
 

redsonnylee

Centenary Club
Messages
1,256
Is this on the diagnose tab, I don’t recognise this output, can you post up a screen shot. If there are no errors stored the screen should be blank.
 

MRichards

Junior Member
Messages
131
That line is part of the log. stored in the Unidiag folder as a text. I now think the "nothing/error" means there is no communication so I'm going to alter the latency setting on the KKL interface. Although the system initialised OK the port closed after a 25 msec. time in diagnose. Also there was no response in Read ECU ID.
 

redsonnylee

Centenary Club
Messages
1,256
That line is part of the log. stored in the Unidiag folder as a text. I now think the "nothing/error" means there is no communication so I'm going to alter the latency setting on the KKL interface. Although the system initialised OK the port closed after a 25 msec. time in diagnose. Also there was no response in Read ECU ID.
Ok, makes sure the baud rate is 9600. Also check that the red light on the plastic cover on the blue cable is red so you know there is power. Which version of Windows are you using.
 

MRichards

Junior Member
Messages
131
Thanks Tony. Windows 7 Pro. Red LED is on. Baud rate after initialisation was 10,400.
I have reduced the buffers on both send & receive to the minimum in device manager, COM port 4

I think I'm battling a flaky Magnetti Marelli ECU and the notorious problems with serial ports. VAG fault code was 2087 which indicates ECU not talking.

Ain't life interesting ?
 

redsonnylee

Centenary Club
Messages
1,256
If possible try and borrow an older version of Windows I used an XP with a slow processor.
It took me a few weeks and about half a dozen attempts to get a connection as you have to do all the steps in sequence. I hope your ECU is not failing - fingers crossed.