B+ Woes

[speed]

Well to sum things up, my B+ Circuit is on an acid trip. with the key turned it gets 1.25v. With the key off, battery disconnected, it has continuity with the body.... So I started tracing the harness. Battery -> EFI is good... EFI -> EA2 is good... but from there it all goes wrong.

I've disconnected the ISCV, the ECU, the circuit opening relay... still B+ is grounded. A few other notes

1) The circuit opening relay harness (relay side of B1) is grounded as well when unplugged from B1... wtf?
2) I can't seem to find my f$#%ng VSVs. Is it possible the cocks who sold me my motor didn't include those? Are they needed to finish the circuit?


Here's a breakdown of my B+ Line as far as I can tell:
Battery -> EFI Relay -> EA2 ->Joins with The Black/Orange wire from the igniter -> Check Connector -> Circuit Opening Relay & ECU


Any ideas men?

 

[p5150]

http://www.cygnusx1.net/Supra/Library/TEWD/MK3/manual.aspx?S=Main&P=48

Are you testing for continuity to ground or resistance? Some of the circuits (like illumination for example) will have continuity to ground until power is turned on; then they will have 12v

The wire coming out of the EFI relay that powers the b and b1 pins on the ECU and all the other shit should be black/red not B/O like the one going to the igniter. The B/O wire coming out of the EFI relay goes to the ECU "M REL" or "main relay". It turns on the EFI relay with positive voltage from the ECU.

The igniter circuit and the EFI relay "on" circuit (both black and orange) are two different circuits.

I think you are relying on continuity to tell you what is connected where. You really cant just rely on that.