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Marky Dissod

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While waiting for my wife to get back from her nail appointment, she calls and tells me she ran the pickup out of gas ...
I know for a fact that in the GMT800 pcm, the fuel level displayed on the DIC is tuneable,
because I tuned mine to display slightly less gas than the GM OE 'tune' displays.

Do not know if the fuel level displayed on the DIC is tuneable in the GMT900 ecm, but if it is,
it might make her a bit less likely to run out of gas next time? Maybe ...
 
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swathdiver

swathdiver

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One would think that a modern pickup would have some kind of low fuel warning. ;)
She was aware that the light came on and had 39 miles left. She swears she didn't drive or idle that much after it came on. Both pickups need to be refueled soon after the light comes on whereas the Yukon can seemingly be driven for days when its light comes on. That's what she's used to I reckon.

Both of my daughters and now my wife have filled the pickups with 26 gallons or more. They have a 26 gallon tank. The Yukon XL has a 31.5 tank size and my record fill is 30.8 gallons but the usual is 26 gallons within 10-15 miles of the light coming on.
 

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