Fuel meter not working.

[CMF_Nnick]

Hi,

I was wondering if anyone could help me out. I have a 1996 nissan march for the japanese market. I recently had to change the fuel pump (over the weekend) and now it seems as though my fuel meter is not reading correctly. The other day I ran out of gas on a hill and it was reading half tank. Today I was watching it and when i am ascending an incline the meter goes to the 1/4 mark and when I was going downhill the meter went back to half way.

Where is the fuel sensor located and how easy is it to replace one?

I realised the mechanic left the fuel pump floating in the tank (it is in some sort of plastic housing) but it is not attached to a side .. is this normal?

Any help would be appreciated.
Thanks.

 

[CMF_nz_aj]

I think there are two different Japanese fuel level senders, with different resistance ranges.
When I swapped instrument binnacles I observed a similar problem.
The fuel level sender is mounted with the fuel pump.
If you swapped pumps, you probably also swapped senders.

 

[CMF_Nnick]

Thanks for the reply nz aj.

So does that mean I need to purchase an original nissan fuel pump for my fuel levels to be correct?

 

[CMF_nz_aj]

I should think you'd be able to either refit the old sender or do something with a resistor(s) to lower the voltage so the gauge reads lower when empty