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Hi,

I was trying to install an Apexi Multi Checker and I found a strange plug/box in the Wiring Harness.

post-13885-1148148608.jpg

post-13885-1148148692.jpg

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Does anyone knows what it is or have it seen before?

The car is a R33 gtst and has a Blitz Boost Controller and Turbo Timer fitted.

Thanks... Arthur

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That looks to be the little unit that groups the grounds together. If you remove the cap you will see that a set of grounds coming out of the ecu (the ones used for trigger earths for example) will be grouped together into a single body ground that runs out into the engine bay somewhere.

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