S

swwrob

New Member
Filled up my p38 DSE yesterday for a trip to Newcastle. Took £93 65 litres from light being on and being between empty line n first one. Do I have sender issues? Does show fuel gauge fault very now n then.

I'd brimmed it but didn't show full on the dash, also 3/4 of a tank to 230 miles :confused:

Ta much
 
Fuel tank holds 90 litres, fuel warning light comes on with about 20 litres remaining on mine when I can get around 70 litres in, which equates to around 400 miles depending on use.
Most I've had is 585 miles when I then got 88 litres in and had to change my underpants as I thought I'd never find a petrol station
 
In my DSE, I filled up every Monday lunch time from half tank to full again (never wanted to fill up from empty - did that once and the £120 bill almost floored me) And I would do between 250-270 miles in about half a tank.

So definatly sounds like you have Gauge/Sender problems - trouble is the sender unit is part of the In Tank Pump unit I believe so although not bank breaking in price - Island list at £41+VAT for a ****part or £125 for OEM....

Have been reports of premature failure of the ****part item!
 
Datatek said:
Fuel tank holds 90 litres, fuel warning light comes on with about 20 litres remaining on mine when I can get around 70 litres in, which equates to around 400 miles depending on use.
Most I've had is 585 miles when I then got 88 litres in and had to change my underpants as I thought I'd never find a petrol station
Click to expand...

Is that standard on P38 then?

On my gauge each mark equates to 11 litres (88(90) on full, 44(45)half) and light won't come on unless between the red and 11 mark, so light on at about 5-8 litres remaining. 22 litres remaining on the gauge would mean the light comes on at the second mark from empty? Unless of course there is a certain amount of unusable fuel in the tank below the pump pick up which cannot be used?
 
aerofabrique said:
Is that standard on P38 then?

On my gauge each mark equates to 11 litres (88(90) on full, 44(45)half) and light won't come on unless between the red and 11 mark, so light on at about 5-8 litres remaining. 22 litres remaining on the gauge would mean the light comes on at the second mark from empty? Unless of course there is a certain amount of unusable fuel in the tank below the pump pick up which cannot be used?
Click to expand...


11 litres per mark? No way my gauge is that consistant and it's about 20 litres remaining when the light comes on not 22, could even be be 18 or a bit less as I don't run it that low very often to check.
 
Datatek said:
11 litres per mark? No way my gauge is that consistant and it's about 20 litres remaining when the light comes on not 22, could even be be 18 or a bit less as I don't run it that low very often to check.
Click to expand...

I have a slightly dicky fuel sender. That sometimes please itself where it puts needle. Think light may come on when computer thinks there is less than 50 miles range left. As extrapolated from average MPG figures and fuel quantity registered by sender, regardless of needle position. Sure i proved this once when lamp was on, with "Range 50>" showing, by resetting comp and then getting a much higher MPG figure and the lamp went out. Range showed a lot more than 50 miles fuel left.
 
You could always just fill up to the brim and set the trip button to zero do 350 miles and repeat until the fuel pump gives up
 
wammers said:
I have a slightly dicky fuel sender. That sometimes please itself where it puts needle. Think light may come on when computer thinks there is less than 50 miles range left. As extrapolated from average MPG figures and fuel quantity registered by sender, regardless of needle position. Sure i proved this once when lamp was on, with "Range 50>" showing, by resetting comp and then getting a much higher MPG figure and the lamp went out. Range showed a lot more than 50 miles fuel left.
Click to expand...

I've only seen that message once when I nearly ran it dry, the average on the fuel computer was 30mpg at the time so there would have been around 5 litres of fuel left. Red light had been on for a while as I recall?
 
Datatek said:
I've only seen that message once when I nearly ran it dry, the average on the fuel computer was 30mpg at the time so there would have been around 5 litres of fuel left. Red light had been on for a while as I recall?
Click to expand...

Does the light turn from yellow to red when you're really chancing your luck then?

G~
 
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