Recently i changed my water pump along with timing belt and serpentine belt. Triple checked to make sure I set timing right. Did full tune up. Changed battery, put a brand new one. Replaced terminals. I tightened everything up. Re-did some of the wiring. Made sure nothing is exposed, covered everything with shrink sleeves. I have original key and fob. When i went to start it at first it would crank, and it would sound like it was going to start. Until battery died. I charged the battery so many times already in intent to start it. Starter and alternator both tested good. Checked relays and theyre good. At first try battery and green key lights would flash on dash. I got the key light to turn off. Now its just the battery light flashing and car battery dies after trying a couple times to start. Ive been pulling my hair on this one guys. Its been an on going job trying to get my pilot back on the road. Is there any suggestions or idea of what it could be ?