2G Awd fuel pump swap gauge doesn't work at all

[idkiliketurbos]

Okay like the title states I did a fuel pump swap and my fuel gauge does not work at all now, it sits at the absolute bottom. I grounded the pin on the drivers side sender connector and the gauge went to full. Then I grounded the pin on the passenger side that is yellow and black and the gauge went to half. Would this signify that the passenger sending unit is bad? The float is not stuck. I cannot see any broken wires at all. Any suggestions would be greatly appreciated.

 

[luv2rallye]

That or the passenger side black wire no longer makes a connection to ground. Try grounding that to see effect. [The ground wire connection to the chassis for the fuel pump, fuel level gauge sender, and low fuel light sender are all at the same point which is the "front floor upper cross member (left side)" which I think is under the driver's seat. Check that connection for corrosion, looseness, broken, etc.]

 

[idkiliketurbos]

That or the passenger side black wire no longer makes a connection to ground. Try grounding that to see effect. [The ground wire connection to the chassis for the fuel pump, fuel level gauge sender, and low fuel light sender are all at the same point which is the "front floor upper cross member (left side)" which I think is under the driver's seat. Check that connection for corrosion, looseness, broken, etc.]

I did ground the pin that has the large black wire, and the one that is supposed to make the low fuel light come on and neither one did anything. Also, since the actual fuel pump works I would think the ground is good since they are all on the same ground. I am going to check it anyways.

 

[luv2rallye]

You grounded the large black right on the passenger side connector (E-59)? There are 2 large blacks for the AWD. Pin 1 is for fuel pump, pin 6 is fuel gauge. Sounds like the passenger fuel gauge sending unit is bad then.

 

[idkiliketurbos]

I'll check the passenger connector again, I was grounding out the largest one.

 

[idkiliketurbos]

New sending unit did the trick!