1994 Cadillac Deville Repair Question
Topics covered: Dealer, Speedometer, Vin number.
Mileage: 21,300 miles.
Mileage: 21,300 miles.
Asked on May 1, 2012
Mpg and range are not being properly calculated
The display shows 23.0 mpg and the range displayed far exceeds what it should.
Answer
Replied on May 1, 2012
is your speedometer working correctly??
Roy
Replied on May 2, 2012
Yes, and the amount of fuel being used and left in the tank both appear to be correct
Replied on May 2, 2012
I had a new fuel sending unit installed a couple of weeks ago. But the range and mpg are still not working properly.
Replied on May 2, 2012
then if all else is working the module may have failed.
it may not be available anymore. call your local gm dealer and give them your vin number and see.
Roy
Replied on May 4, 2012
this is controled by the ecm.what is the range when it read 2 gal.