Fuel gauge not working - dealer problem

Just picked my car up from dealer after spending £740 to replace lost keys (which resulted in a new ECU).

Driving home I noticed the fuel gauge was flashing empty, needle right on the stop. Range display also showing -----. Stuck some diesel in at the nearest fuel shop and checked again. Still no good.

I called the dealer on the way home (hands free of course) to tell them to make a note and await my call tomorrow.

My question is:
I guess this is to do with the ECU change but is there anything I can do to try and get it working myself ?
Whilst I want to just pass it back to the dealer I have just got the car back and since 21st June. I really have no more time to arrange to get the car to the dealer.

Oh, and they did not even set the right time/date on the display. Not what I would call a professional service.

Thanks

i think it is time for you to start shouting mate

Tee hee. As I expected the local dealer has committed to investigate but would not commit to picking up the bill - it depends on what they find.

I could be taking this to the top guy at Alfa because I wont be paying for something they caused. Dont care if it just a fuel gauge.

Just read a nice post about Alexanders at Stockton. I'm of there next time.

Does anyone know how to troubleshoot this problem of the fuel gauge showing empty ? I want to build an arguement to prove to the dealer that it was their fault. Need as much ammo as possible.

I would be surprised if the sender just happened to fail whilst the car was in the dealers possession.
I have looked at the connectors onto the computer but don't really know what more I can do.

I have a hunch that the dealer is going to try and get me to pick up the bill for this.

The stealer fixed my fuel gauge. It was related to the recent ecu change and (surprisingly) they did admit liability.
Other than my inconvenience I dont suppose I can complain too much this time.
Another problem solved.