ok, i just though of something.... yes i can think i just put in a wiring harness that came from a 74 2.0, well, this is for a 75 with a 1.8 engine in it. Thus, the fuel pump is run by the dual relay, not by one of the small round relays on the relay board. Is the wiring in the main harness differnet for 1.8 cars, and 1.7/2.0??? Thanks

Main harnesses vary by model year but not engine type

The dual relay has 5 connections to the vehicle.. diagram and legend....check that the wire going to T12/12 is connected correctly

I see a re-surgence in L-Jet activity here. I like L-Jet. Under teh battery tray was not an ideal location for the Fuel Pump/ Dual Relay. I have opened a few of these and due to replacement's cost and availability consider it worth fixing. open it and clean it well. as long as teh contacts can be cleaned and the coil has continuity, youre in luck.

as far as year model vs FI to main harness compatibility...yada yada...

my 74 ran a 1.8 L-jet stock. when it died, I plugged in a 71 1.7 D-Jet. I also used a 75 L-Jet set up in my 74 1.8 car