first check with your GM dealership ,they have recall on ignition key ,based on your vin# you may get lucky,
but if not here what you star with
there is a resistor in your key(people call it chip,but it is nothing but a resistor to complete the circuit) clean both side with alcohol wipe,also check make sure there are resistance from one side to other,if it is open you need new key
here are values,yours are one of these
Resistor Values:
- 392: Orange, White, Red Black
- 523: Green, Red, Orange, Black
- 681: Blue, Gray, Brown, Black
- 887: Gray, Gray, Violet Black
- 1,130: Brown, Brown, Orange, Brown
- 1,470: Brown, Yellow, Violet, Brown
- 1,870: Brown, Gray, Violet, Brown
- 2,370: Red, Orange, Violet, Brown
- 3,010: Orange, Black, Brown, Brown
- 3,740: Orange, Violet, Yellow, Brown
- 4,750: Yellow, Violet, Green, Brown
- 6,040: Blue, Black, Yellow, Brown
- 7,500: Violet, Green, Black, Brown
- 9,530: White, Green, Orange, Brown
- 11,800: Brown, Brown, Gray, Red
next take the fuel pump relay out and check it
Check the fuel pump relay first, take it out and check the pins. If they are discolored at all, I would replace it. You can clean up those pins and try it, and make sure the female spring clips are tight too.
There is a hot wire straight to the pump but it's usually a real PITA to find. It's in the big harness leaving the under hood fuses, running under the brake booster.
next you check fuel pressure make sure,pump is working correctly
with key on/engine off should read 60 to 65 psi,with engine running about 55,next as engine running take the vacuum line off the fuel pressure regulator,and pressure should go up to 60 to 65,if not regulator is bad,also check inside the vacuum line and regulator if it is wet or gas present that means diaphragm in regulator is ruptured ,it is also bad,need to be changed,BUT BEFORE CHANGING PUMP.CHANGE THE FILTER ,SEE IF THAT BRING BACK THE PRESSURE UP, if all good then you need to check for spark
let me know and I can help you more