I'm pretty sure the cap won't vent, I think I'm going to mod the filler hole so I can fill it through the factory neck. So I'm going to maintain the lift pump return there.
fuel cell and sending unit wiring
- Thread starter dracing70
- Start date
If I was mounting underneath I would do the same but I'm not. I would not think it would b a good idea to tee the engine return and lift pump return in together ???
I'm going to leave the lift pump return in the filler neck where it is already and run the engine return into the port on the cell. I'm not sure why it would be a bad idea to have them run together, they both just dump into the tank.
Yeah I just wonder if it will cause any restriction ?? Am I right in saying a restriction on the return could cause a fueling issue. ?? Do u think one 1/2 return line can handle both engine and lift pump return ???
I think it would be fine, but if your lift pump returned a crazy amount you might have a problem.
Now I never received any info ?? Someone on here has to know the proper way to wire in the stock fuel harness to a aftermarket fuel cell ???? It's only two wires and I tried both combos but all I get is full and empty ? Am I doing something wrong or is there a way to calibrate and if so how ?
So can it be done through the tune ?? I don't ever recall seeing a voltage chart only the tank sizing tables? Unless I missed them ?
Yes, it can't be fixed through wiring. The sender in the fuel cell has a completely different resistance sweep compared to the factory unit.
So is the wiring cut and dry ? Is purple wire the signal and black the ground ??
Yes, I believe that was the correct color code. It's pretty much all in the tune.
You'll probably just have to play with the tank size (gallons) till you figure it out. For instance, I doubt just putting in 20 will work... Might end up having to put 7 gallon for it to read accurately. Play with that, that's what I would try... Also I'm running liftpump and engine return tied together then dumping into my cell.
After debating back and forth for a month I ended up mounting it underneath and reusing the fuel door fill and I recycled the lift pump into the fill hose like a normal lift pump
well I dicked with the table all day today and I figured out nothing. when wires are hooked purple to signal and black to ground it just goes straight up to full. I tried manipulating the tables in about 6 different configs and nothing changed. any other ideas????
The tuning tables read in voltage yes but here is my question now does the signal wire send the voltage out ? And if so which wire then recieves the voltage reading back ?? I have a feeling the wires are not in the right location