I installed the new aeromotive 340 fuel pumps in my truck, I blew the 20 amp factory fuse, replaced it, the truck runs but the fuse is getting hot. has anyone else had this problem? Has anyone done additional wiring to support these pumps?
i dont know if you need heavier wiring for the aero's but i heard some people were stepping up the gauge of wireing on the walbro 255 set ups to help out with current draw or wires heating up or something like that. these aeromotive pumps are relatively untested in the L community.
Use the factory wiring to activate a relay for the pumps. One if you run full voltage to both full time like I do. Or one for each pump if you want it to switch like stock. This should be done with Walbros as well.
I jumped the resistor and the pumps run 100% of the time, what about running a hobbs switch on one that activates @ say 4" of vacuum, so when I'm crusing only one pump is running, as soon as it heads to boost the second kicks it?
A lot of people have had issues with the Walbros on the stock wiring and circuit. When we replaced mine I could've had Walbros for the same price as the Bosch's but Paul [mr12volt] convinced me that the work involved in doing it right wasn't worth it for a street truck under 600 HP (not that I'm anywhere near that LOL). Bosch's installed truck runs like a top.