Ford focus petrol 1.6 .06 Greg when refueling speedometer stops working temp.also engine manage light has come on

Sounds like the speedometer is faulty. If the speed sensor were the problem, the odometer would not work correctly, the transmission would not shift correctly, and the check engine light would be on.

Usually if both the odometer and speedometer stop working, the problem is the speed sensor on the transmission. You should also have a trouble code in the engine computer.
If one component works but the other does not, the problem is usually the speedometer head in the dash.

I think something wrong with your ford, you can use a autocom cdp pro cars diagnostic tool check your car,

For speedometer related issues,the help links are provided below.Click the link below to go through its details :----

How to trouble shoot speedometer?

http://schematicsdiagram.blogspot.com/2011/06/speedometer-not-working.html

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why speedometer not working? http://technoanswers.blogspot.com/2012/01/1996-fiat-bravo-speedometer-not-working.html

------------ Speedometer works but odometer not working? http://technoanswers.blogspot.in/2012/01/speedometer-works-but-odometer-not.html----------- Speedometer runs backward?

http://technoanswers.blogspot.com/2012/01/speedometer-runs-backward.html

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Warning lights on and speedometer died?

http://howtobyme.blogspot.com/2011/08/warning-lights-on-and-speedometer-died.html

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ABS & Brake lights warning indicator steady on dash and speedometer not working?

http://howtobyme.blogspot.com/2011/11/abs-brake-lights-warning-indicator.html

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Vehicles Cluster panel Not reading Miles?

http://schematicsdiagram.blogspot.com/2011/12/vehicles-cluster-panel-not-reading.html

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Odometer works properly but speedometer works intermittently? http://technoanswers.blogspot.com/2012/01/odometer-works-properly-but-speedometer.html

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How odometer works in cars?

http://technoanswers.blogspot.com/2011/11/how-odometer-works-in-cars.html

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Speedometer not working on Ford?

http://repairhelpcenter.blogspot.in/2012/02/speedometer-not-working-on-1993-ford.html

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This will help.

Thanks

Check the temp sensor wire that goes to the engine. They will short out to engine and make the dash do strange things.

Most likely a fuse,or the ignition switch is bad.

check under the dash passenger side

speed sensor it on the back of the gear box cost about £35.00
from ford

Check your fuse box. Sounds like it may be a fairly inexpensive fix.

you can use the ford fault codes to check with out going to a dealer this may reset the poss ecu fault
easy check system without a laptop ?? as long as you have a digital trip
before you start your car press and hold the trip reset button turn the key to start your car and keep the button pressed within 10 seconds the clock will show 0000 when this appears each time you press the trip button it will self test differant systems full dash clock sweep all warning lights engine rpm alternator charge engine core temp fuel flow and will list fault codes which can be checked on this site atleast it will save you afew quid/euros dollers on ford checking it for you and you will know what if anything needs doing i hope this helps