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My fuel light went on!

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Old 02-17-2007, 03:23 AM
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bronto
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Default My fuel light went on!

One more thing I thought I had to fix but is really just fine...

After driving it since August and running the take low quite a few times and never seeing the low fuel light (except when starting the car) I had decided that something on the sender was bad.

Last night I was driving home and I thought I was really pushing it to the edge when all of the sudden the light came on! 3 miles later (today) I filled up the tank and put in 19.393 gallons. Reading other messages here about low fuel/fuel capacity tells me I probably have another 2-3 gallons to go.

I also read something about calibration... how do you do that? I'd like the needle to point to reasonable places when the tank is full and low. Can I calibrate the light too?
Old 02-17-2007, 04:15 AM
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TheoJ
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What year is your 928? The digital dash has a feature to calibrate. It is all documented in the diagnostic manual of the dash.
Theo
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http://928gts.no-ip.info
Old 02-17-2007, 04:17 AM
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bronto
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'79.
Old 02-17-2007, 05:37 AM
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SharkSkin
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There is no calibration per se, but if you feel adventurous and electronically talented it's certainly possible to tweak this -- you could also change where the fuel light comes on by moving the contacts, but then you would have to shorten the wires(or lengthen them, if you want a reduced margin).



First clean all contacts between the sender and the gauge, and clean the wires. If you're lucky, like I was, that will improve it enough that you won't think it worth the hassle to go from 95% perfect to perfect.
Old 02-17-2007, 10:49 AM
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chaadster
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Originally Posted by TheoJ
What year is your 928? The digital dash has a feature to calibrate. It is all documented in the diagnostic manual of the dash.
Theo
http://jenniskens.livedsl.nl
http://928gts.no-ip.info
Wow! Theo Jenniskens! Good to see you here, and to see your excellent website is back up and running in a new-and-improved version! You are one of the legends, Theo...thanks!

Sorry for the thread drift, Bronto, I just had to get that out.
Old 02-18-2007, 10:15 AM
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TheoJ
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Hi Chaad,
Thanks for your comment! I appreciate that. I had to change ISP a few times and my website was therefore hard to find. Sorry about that.

Bronto: for the '79 you will have to stick with Sharkskin. He said it all. There's a few instructions around when you want to dismantle the in-tank sender.

Theo (1992 928 GTS midnight blue)
http://jenniskens.livedsl.nl
http://928gts.no-ip.info



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