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SD1too · 21st April 2024, 16:28

Hello Mac,

The fuel gauge is normally reliable and accurate since the instrument pack algorithm takes into account the rate of fuel consumption as well as the level readings. However I've read of a few owners who have experienced the same symptoms as you have described and it's always on a diesel.

One member investigated this comprehensively and found that the tank rheostat had worn away over a section of its travel. I suspect that this might happen due to the miserly fuel consumption of the diesel, coupled with topping-up the tank with a small amount of fuel such that the gauge is always reading in about the same place. This is just my theory, I have no proof but if you recognise this as something that you do, it might be the explanation.

Regarding the 0570 display which you obtained from the instrument pack diagnostics, you can find T-Cut's article on this in the "How to" section of the forum. I think it probably means that you have 57.0 litres of diesel in the tank. The IPK cannot distinguish between left and right senders since they are wired in series at the tank connector.

Simon

21st April 2024, 16:28	#7
SD1too Doesn't do things by halves Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007 Location: Former Middlesex Posts: 20,492 Thanks: 1,587 Thanked 3,749 Times in 3,181 Posts	Hello Mac, The fuel gauge is normally reliable and accurate since the instrument pack algorithm takes into account the rate of fuel consumption as well as the level readings. However I've read of a few owners who have experienced the same symptoms as you have described and it's always on a diesel. One member investigated this comprehensively and found that the tank rheostat had worn away over a section of its travel. I suspect that this might happen due to the miserly fuel consumption of the diesel, coupled with topping-up the tank with a small amount of fuel such that the gauge is always reading in about the same place. This is just my theory, I have no proof but if you recognise this as something that you do, it might be the explanation. Regarding the 0570 display which you obtained from the instrument pack diagnostics, you can find T-Cut's article on this in the "How to" section of the forum. I think it probably means that you have 57.0 litres of diesel in the tank. The IPK cannot distinguish between left and right senders since they are wired in series at the tank connector. Simon __________________ "Whatever is rightly done, however humble, is noble." Sir Henry Royce.