Hi all I need help with a wiring diagram for the boost control valve. here is  screen shot of the diagram, Ive circled the 3 wires I need help with. Are these earths ? as it looks like they all lead into one wire.

 

 

Edited 8 June, 201511 yr by judge360

Can't see your screenshot, but if you're looking at the three connections that all join up to rail "D103", that's a +12V feed, not an earth.  Comes from the switched side of the fuel pump relay.  The ECU will energise the valve by pulling down the purple/white wire towards 0V.

Hi Wino, the wires for the boost control valve have been bitten through by rats there are 6 wires 3 of which are black and blue I need to know which wires go where?

Your diagram is a bit hard to read, but looking at the same pdf on my screen, the red/blue wire goes to engine ECU pin 81, the purple/white one to engine ECU pin 62, and the brown/white one to engine ECU pin 61.  The three black/blue ones all join together at some point and become a thicker black/blue wire which goes to pin 6 of a 14 pin connector somewhere on the left/ nearside of the engine bay.

Thank you Wino really appreciated, I just needed to make sure those black and blue wires joined together, off to fix it now.

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