206 hdi fuel gauge warning light fault...

[Piggy]

On the old green 206 NAD I thought the fuel lightcame on early...1/8th of a tank...

But on the new HDi 206 the fuel light comes on at a1/4 of a tank.

I assumed both light and gauge ran off same sensor?!?

Any ideas!?

[cully]

light is calculated off the tank sender resistance
gauge is taken fron the same sensor

could mean the needle of the gauge is in the wrong place

or the wildly inacurate french monkey guessing at the reading could have drunk to much diesel

[Toms306]

Ideas - brim it and count the miles, never trust a Peugeot gauge!

Does it show miles to empty?

[Piggy]

No, no trip.
The gauge changes the correct amount when you add X amount of diesel

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light is calculated off the tank sender resistance
gauge is taken fron the same sensor

could mean the needle of the gauge is in the wrong place

or the wildly inacurate french monkey guessing at the reading could have drunk to much diesel

If the needle is right....
Can the light be recalibrated?!

[cully]

dont think so

[Toms306]

Hmm, bit awkward without a trip then. :/

Maybe its never seen a full tank, only quarter every time and the sender unit has worn on the bottom quarter, causing a change in resistance to bring the light on too early? Just thinking aloud, not even sure if that's how it'd work!

[Piggy]

Tested a spare set of clocks today...showed 1/3 tank where the original clocks show 1/2.

So seems the light doesnt lie.

The spare set have a oil temp gauge and nicer surrounds so will swap once mileage is same which is only 1000miles or so!

[cully]

i was under the impression on the muxed 206's if you put a higher mile clock set in it got set to bsi ,then when you put the lower back in the higher mile was set to the lower mile clocks set

[Toms306]

Piggys isn't mux anyway.