clayjay Posted July 8, 2019 Report Share Posted July 8, 2019 Morning guys does the ground out green wire on B loom need to to be engine earthed or Battery (chassi) . Have searched forum lots of ground info couldn't find this one. Thanks for your time Quote Link to comment Share on other sites More sharing options...
cj Posted July 8, 2019 Report Share Posted July 8, 2019 No, the green Ground out/sensor ground wires on both looms are only to be connected to sensors etc. They are designed to be a "clean" ground, so that your sensor does not receive noise via its ground wiring. Do not ground these directly, or wire them as a additional grounds to anything that has a direct engine/battery grounding. Quote Link to comment Share on other sites More sharing options...
clayjay Posted July 8, 2019 Author Report Share Posted July 8, 2019 Thanks Pal, Strictly sensor ground wire , can I ground 2 sensors to this clear ground. Quote Link to comment Share on other sites More sharing options...
Simon Posted July 8, 2019 Report Share Posted July 8, 2019 Two sensors would be totally fine to that wire Quote Link to comment Share on other sites More sharing options...
clayjay Posted July 8, 2019 Author Report Share Posted July 8, 2019 Thankyou. Do I need to use separate 12v 30 amp relays to power ECU, Coils & Injectors. Quote Link to comment Share on other sites More sharing options...
Simon Posted July 8, 2019 Report Share Posted July 8, 2019 You should be following the power supply wiring information in the help file. There are a few variations depending on if you want to use ECU hold power or not. Head to the PC link help file then Wiring Information > Power and Ground Wiring > Power supplies Quote Link to comment Share on other sites More sharing options...
clayjay Posted July 9, 2019 Author Report Share Posted July 9, 2019 Thanks Simon, Have found an Installation and wiring manual . Sorry for the newby questions but have had 3 people have a go at wiring this thing up 3rd guy got it going and tuned . Have now stripped all the wiring out and starting again mit was a mess and only to a problem in the future , getting there. The 1-2uF suppressors have not been installed and I do remember during the tune up in the rev range there was a miss. Have been to Jaycar and supercheap auto shop unfortunately they did not have them and unsure where to get them, will try an auto sparky tomorrow. Unless you guys may know where to get them . Also oil pressure sensor wiring has been spliced into the injector wires, it was working will this be okay . Cheers Quote Link to comment Share on other sites More sharing options...
Simon Posted July 9, 2019 Report Share Posted July 9, 2019 Most factory applications will have a suppressor on the power feed to the coils any factory one would be fine. (Its not really that critical) Oil pressure sensor should be fine assuming it is happy with a 12V feed. Regards Simon Quote Link to comment Share on other sites More sharing options...
clayjay Posted July 10, 2019 Author Report Share Posted July 10, 2019 Okay thanks for your help. Car is a circuit car VN turbo ecotec 4.2 chassis is original. Cheers guys Quote Link to comment Share on other sites More sharing options...
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