Just Commodores Forum Community

It takes just a moment to join our fantastic community

Register

VX Fuel Guage Calibration

Discussion in 'VT - VX Holden Commodore (1997 - 2002)' started by VFCalais2017, Dec 5, 2018 at 5:30 AM.

  1. VFCalais2017

    VFCalais2017 New Member

    Messages:
    29
    Likes Received:
    13
    Trophy Points:
    3
    Joined:
    Feb 28, 2018
    Location:
    Sydney
    Members Ride:
    VF Calais V6 MY17, VX Calais V6 2000
    Hi all,

    It seems this is a common issue with VT and VX so I'm hoping that someone can shed some light on it... :)

    I replaced the original fuel pump in my car three weeks ago. It was operating fine to supply fuel however the 'fuel remaining' on the dash was erratic when approaching empty. Before starting the job yesterday, the dash showed 0 kms remaining. When I removed the tank, there was 25L of fuel remaining inside!

    After I completed the job and put the same 25L back in the tank, the dash showed 15 kms remaining. I completely filled the tank this morning and the dash then read 790 kms to empty. I drove the car for 12 kms after which the dash read as 660 kms remaining.

    I read in one of the posts above that after replacement of the pump and the battery is reconnected, the fuel gauge will reset and 'calibrate'/stabilise itself. Is this true or do I have an issue elsewhere in the system.

    One thing I noticed with the replacement was that the new pump I purchased from Holden (Part No. GM-92158011 - DELPHI) was slightly different to my original. The new pump was slightly shorter and had two flexing pipes running from top to bottom. The rheostat for the fuel gauge was also slightly shorter in its travel. The original fuel pump had three rubber feet on the bottom and a 'filter' sock on one side.

    Holden assured me that this is the correct pump for my VIN as they changes the design of the pumps midway through VX.

    The pump is operating fine however the fuel guage is incorrect. When the tank is filled, the guage is showing just below full, but when the low fuel warning light appears, the trip computer says I've used only 35 to 40 litres?

    Is there any way of calibrating the fuel gauge myself? Can this be done with any of the aftermarket OBD tools available or can this be done by Holden with the Tech 2?

    Any advice would be appreciated :)

    Replacement Pump New Pump.jpg
    Original Pump
    Original Pump.jpg
     
  2. limitedslip

    limitedslip New Member

    Messages:
    2
    Likes Received:
    0
    Trophy Points:
    1
    Joined:
    Sep 22, 2018
    Location:
    syd
    Members Ride:
    vt2 ss
    Does the attachment work?
    Under 2.3 fuel sender assy, there is check for float position
    Might help
     

    Attached Files:

    Last edited: Dec 7, 2018 at 11:18 AM

Share This Page