Quote:
Originally Posted by Tom '74 911
I have the same problem I think. See this thread I started:
http://forums.pelicanparts.com/showthread.php?t=443908
I have not solved it yet, but would love to know if you find a solution! If you've replaced the sender w/a new one, then it must be the wiring somewhere. Maybe a bad ground or short in the gauge?
I haven't tackled the issue beyond removing, cleaning and testing the sending unit - sometime soon, I will start to sort through the wiring and do some investigating. Please post back if you discover what the cause is and I will do the same.
Good Luck,
Tom |
Tom,
Thanks for attaching your other thread. In that thread, Bill in OKC points out the problem that I suspect our cars have. PCA.org Tech Q&A pointed me to Up-Fixin der Porsche Volume V (1977-1980) which has a good write-up and diagram of the sender and gauge circuits. My sender is new so I think it's the gauge. (In fact I now think my old sender is fine to reuse but I dipped the new one in gas so I'm keeping it.)
To quote Up-Fixin, "Some late model 911s have reported fuel gauge abnormalities. The usual symptom is erratic readings below the half-full level... an intermittent short in the gauge itself has caused the problem."
I'll open the gauge and post my findings.
Andre