Fanatec GT2 & CSP dropping out

Everynow and again my CSP's stop working when connected via the PS2 lead - the lead appears to be at fault as it's not a tight fit and a wiggle usually fixes it. I also never had this problem with the G25 pedals + adaptor.

Is the PS2 lead just a PS2 lead, can i just buy one of the std PC ones and it will work or are they wired differently?
 
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