Technical > Electrical

diagnostic reader help

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steveo3002:
its for a gt actually but struggling to get info i need ..guess a g40 will be same pinout

basicly i have a code reader ,manual says both K and L  line need to be connected , only K line is connected on my car , does anyone know where L line should go ?   i.e earth or a pin on the ecu etc

thanks 

ereeiz:
Have a look here. There's a few threads that may help. https://www.polog40.co.uk/forum/index.php?board=30.0

hayesey:
you shouldn't need the L line, just the K.  You might find those code readers a bit hit & miss, I've always had the best results using an old VAGCOM lead (with an rs232 connector, that old!) and "VWTOOL.EXE" software.  Info and a link to the software you can download here:

https://www.polog40.co.uk/forum/index.php?topic=213.0

steveo3002:
right i got it going...was a grubby pin in the join under the dash

measuring blocks- ign timing - its going ape 0-22 and every number between erraticly , is this normal or should it hold a steady reading ?

hayesey:
yes it's normal for that reading to be constantly moving.

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