FiTech 7/3/16 update

So far, in about 60 miles of driving, the car has died and been very difficult to restart 3 times. The last time I finally had it hauled home (AAA), and of course it started right up as soon as we got it off the truck. Others seem to be having similar problems:

http://classicbroncos.com/forums/showthread.php?t=263586

Nutshell version: could be weak ground connections?

I have aluminum heads and an aluminum intake, which could result in a weak ground to chassis through the ground strap. I’ve long suspected that grounding issues could explain why the fuel gauge reads 1/4 tank or more low typically.

Other notes about my setup: I used the Tanks, Inc. 22 gal. fuel tank with the 255 LPH in-tank Walbro fuel pump. I used 14ga wire to extend the fuel-pump power wire from roughly the left dash area back to the pump. I used a crimp connector at that junction, with the thought that I will likely add a pump cut-off switch. The pump is grounded to the chassis in the trunk for now. I can hear the pump running when it won’t start, but I confirmed I’m getting no fuel through the injectors. The data log shows that the FiTech ECU is receiving a reasonable tach signal via my my 33 year old MSD-6A when it won’t start, so I’m assuming it’s trying to provide spark.  I am not (yet) using the timing control, I have a Ford magnetic pickup vacuum advance distributor feeding the MSD-6A and a new MSD blaster-2 coil.

I’ll experiment with the wiring tomorrow, but with rain forecast all week, it may be awhile before I can drive it enough for more tests.