What the hell is going on here?

Attachment 167077

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Originally Posted by PhilipA

It looks to me that you could just disconnect all the stuff going to the piggyback stuff and you will be back to stock.
It looks like the connectors are the same as the factory ones, and by just pulling them out and reconnecting to where the piggyback ones went it SHOULD be OK.
BUT hey if it runs leave it like it is.
Regards PhilipA

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you were right mate. It is in fact an old Unichip piggy back module. Unplugged and reconnected to the ECU. Will find out if it runs once I find a negative earth cable I can do a straight replacement with. Thanks again.