Trying to revive a 99 LHS with a 3.5L HO engine. Vehicle was stored outside for two years, untouched. Drained gas tank, replaced battery. Put 2 gallons of gas back in tank with some injector cleaner. Vehicle turned over at this point but would not start. Replaced crankshaft position sensor. Vehicle still would not start. Checked for spark by pulling coil and grounding spark plug - no spark. Swapped ASD relay with known working relay - no difference. Unlocked doors with key and fob to rule out the security system. I believe the key is the correct chipped key (large grey), as it is the only key I have. Any advice would be appreciated!

 

Retrieved codes via the ingition swith sequence:
1. P0113
2. P0118
3. P1478
4. P0406
5. P1684
6. P0443
7. P0123