Every time I get gas, whether I'm at half a take or 3/4 tank, it always takes forever to turn over. I usually have to pump the gas to get it going, and if I don't start driving right away it'll stall. I did some research and people have been saying to test the purge valve. Tested it and the ohms were in the right range, was getting like 7-12 when online says should be 22-30. Got the new part but this one is reading the same ohms. please help.

Also is there a repair manual for the 2012 impala I can buy for future problems?