Well i have a 99 sunfire 2.2. i knew the gas level sender was going so i replaced it..now i have anew issue. The gas level is going down way quicker then it acually shoul be. I usually get about 400 -450km per tank. Now this sender is tellin me im at half tank with about 150 km..it was down a 1/4 tank with 50 km on it..so something isnt right
i checked ther eisnt any leaks or gas smells,any ideas at what it could be???/ phil

Sounds like your new sender is either defective or isn't the right one for your car. When it says you are at a half tank and you fill it up, does it actually take a half tank's worth or does it take something more in line with your normal gas mileage?

i dont know really,..
car has never had a working one lol..It pretty much looked the same..but lets put it this way..i filled it up..it sat dam close to full..but within 30 or so k it was down to the first mark already..and there is no way in hell that is possible....its almost like its sending the wrong signal...ie the ratios are off or something..anyone know the delco number for a fuel sender for the 2.2? phil

I would check the earth connection at the fuel sender, make sure you have a good earth there.

Here is a link to explain.

http://www.autometer.com/tech_faq_answer.aspx?sid=1&qid=35

The sender resistance should be Zero ohms EMPTY and 90 ohms FULL.

To check the Fuel Gauge

Pull off the Fuel Gauge connector at the fuel sender- with ignition ON gauge should read "FULL"

Ground the removed Fuel Gauge connector- with ignition ON gauge should read "EMPTY"


Hope this helps


Alont