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1994 Cadillac Deville Repair Question


Topics covered: Dealer, Speedometer, Vin number.
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.
Avatar Asked by hendrix1

Answer

Replied on May 1, 2012

is your speedometer working correctly??

Roy

Tiny Answered by ASEMaster6371 (expert)
24,854 answers provided
Replied on May 2, 2012

Yes, and the amount of fuel being used and left in the tank both appear to be correct

Tiny Response from hendrix1
1 question asked
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.

Tiny Response from hendrix1
1 question asked

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

Tiny Answered by ASEMaster6371 (expert)
24,854 answers provided
Replied on May 4, 2012

this is controled by the ecm.what is the range when it read 2 gal.

Tiny Answered by cadieman (expert)
2,866 answers provided