Finally got our 86 SVO running again after sitting since what we have figured is mid 90’s but trying to narrow down a new issue. The car is getting no power from EEC relay to inertia switch. The relays are brand new and tested and working fine (have tried multiple and bench tested) but if I take a jumper wire from power in to power out on the eec relay harness then I get power out to the inertia switch and then to the fuel pump relay under the seat. But then same issue at that fuel pump...

86 SVO electrical issues