I followed the harness from the fuel pump, along the frame, to the connection under the air filter housing. I checked the resistance on the pink and black wire from the fuel pump connector to the connector under air box. This measured.1 ohms. Measured pink and black wire at connector under air filter housing to connector at expansion tank. This reading was also.1 ohms. Followed the harness from this point to the connection at left fender/firewall area (C145?) I measured the pink and black wire and also read.1 ohms. I ran out of time to follow from the firewall to the interior (not sure where it leads to). I did check voltages at the relay base again. Battery voltage at this time was 12.4V.
PCM relay terminal 30= 12.4V; terminal 87=12.4V; terminal
86= 11.2v with key cycled on, 9.5 cranking.
Fuel pump relay:
#87=11.65v key cycled on. 10.1v cranking
#86= 12.17v with key on (10.3v when cranking)
Read 10.6v at pink/black wire to inertia switch (back probed)
11.1v at green/yellow wire at inertia switch. (Back probed).
I should have some more time this weekend to continue. Thank you guys for all the assistance.
Friday, April 10th, 2020 AT 12:41 PM