GD427 MK IV

GD427 MK IV
What my car should look like when finished - Stoneleigh 2015

Sunday, 12 March 2017

Engine Fuel System / Wiring - Complete!

I managed to find some more time in the garage to finish off the engine wiring loom and fuel system.  I bought 2x Innovate LC-2 Wideband Lambda sensor kits which uses the Bosch LSU 4.9 sensors.  This kit came with it's own wiring connectors, so I had to open up the loom again to remove the original wiring and add the new cables in.

I also changed the route of some of the wires to make a T shape behind the engine rather than a +.

I made some stainless steel brackets to hold the Bosch sensor connectors.  These were cut from 2.5mm stainless plate and a square hole was made and the connectors are an interference fit to prevent the connectors from falling out.  These were bolted to the engine block with M6 set screws.

I received the proper connectors for the knock sensors.  These were ACDelco PT #2652 to go with the LS Gen IV Sensors (GM #12570125).  I cut off the old ones from the loom to shorten the cables to neaten the installation.

The fuel hose fittings just need to be tightened to finalize, but overall I think it looks like a neat job and I am happy with it.  For now............