As I Told You Before.....!!
SPD And FC Should Be Connected...!
The SPD Is VSS Signal From Meter To ECU
FC Is Fuel Pump Relay -ve Signal From ECU...Only Works If STA Wire Is Connected Properly
For Mating B+ Batt And B1......So He Did it All Wrong..
+B And B1 Will Operate Via IGN Switch And Get Power Via Relay With 15A Fuse Connected On IGN ON
BATT Will Go LIVE Via FUse To Batt +ve......! It Will Be Live With No Switch Cut/Offs.....!!
The Way He Wire It...>ECU Will Never Store Anything And Will Go Blank Everytime You Switch Off/On Engine
Rest I Don't Know What he Did...The Loom Seems Uncut To Me ...All He Need To Do Is Attach The Fuse Box And Make It Work All Via Fuse Box....No Alters Connection Needed.....!!