Saab 97x 2006 8 cylinder and the gas guage and automated mileage display on 2006 Saab 9-7x

I really cannnot tell how much gas I have in it and have run out without warning. When I first got the car in Feburary the gas indicator would read I was low and a light came on. Now the gas guage is all over the place and no warning. Is there a fuse that might regulate the proper amount in the tanl . Also the ignition swith is tricky so when I did not turn it completely off I had to get it jumped. Did this perhaps affect the computer?

by in Roanoke, VA on August 22, 2013
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3 answers 3 comments
ANSWER by , August 22, 2013
Did this problem start immediately after the jump start?
COMMENT by , August 23, 2013
The problem with the low gas light and readout display stop functioning after the jump start
COMMENT by , August 23, 2013
Were the jumper cables AT ANY TIME hooked up or even touched to the wrong termanils???
COMMENT by , August 23, 2013
No as far I I can remember. It had a problem with a charge because they were loose one time, but they were always in the right positions.
ANSWER by , March 12, 2015
recalled for gas tank sensor.
ANSWER by , August 22, 2013
The fluctuating fuel gauge is probably a bad fuel level sending unit. There are little teeth that swipe a circuit board which then the computer reads the resistance and tells the IPC the fuel level reading which you see. The gas tank will have to be removed to replace this part. Before doing this have a knowledgable mechanic test the circuit so your not just replacing parts. As for the ignition switch it sounds like theres a problem with the ignition lock cylinder. I believe the problems to not be related.