EFI onan
Has anyone considered going to an EFI generator on their toy hauler instead of the carb unit?? I have discussed getting an EFI one when looking at ordering a new hauler. Dealer said not a problem.
Forum Discussion
dohler1 wrote:
Spoke to my local ONAN dealer about this exact issue. Here is what they advised:
needs the following in the Fuel tank:
--Supply return & purge lines for the EVAP EFI unit.
--Has to be rewired to just produce 120 volt as they are 120/240 volts
5.5 HGJAD-6759(diamond symbol)
if you have figured this out please let me know. I have the 5500 carbureted one now. I am always having issues with it. Want to go EFI on our new one.
You got some bad info there on a few fronts. The EFI comes in both 240v and 120v versions just like the carb unit. You'd only need the 120v model but could also use the 240v model as your rig divides the two circuits coming from the genset to the two phases in the circuit panel. No different than when you're on 50 amp service and have 240V entering your rig. As to the fuel lines, you already have the supply and EVAP line. You'd simply need a 3/8ths inch rubber return line. It's very easy to plumb that back into your fuel tank by using the filler neck adapter I linked below for $50. Then, the last thing you'd need is the EFI fuel pump which is different from the carb pump. It's really a straightforward and easy changeover. I just never got to it as my carb unit always works. I keep Stabil in the tank year round and never have an issue. Anyways, here's the tank filler neck adapter for the return line:
Filler neck tie in...
