CAR SHUT DOWN WHILE STARTING?

Have had troubles getting this thing started when I bought it but it would start after many cranks, But today when I was installing some new parts. I hooked it up to the jumper. Cables like I usually do and it started giving me a little bit troubles this time, I was cranking it over and then while I still had the key in the opposition. It would shut off and then turn back on and continue trying to start itself. Well, I figured the battery was still dead so I left for 45 minutes to let it charge. Then went out, started cranking it over it. Cranked over 4 times, sounded like it was gonna start. And then everything went black. You turn the key and the oil light slightly fickers and nothing turns on. What would've happened? All I installed was a coolant resevoir.

 

Sounds like the battery is junk.

 

Or a good check of the ground to chassis connections while youre in there

 

** UPDATE Battery is junk, replaced that car started up still hesitantly but w/o jumpers so it was running then came p0091 where would you guys start? Started running real rough after the cel came on. But never had this issue till now.

 

Could be minor. Take a look.
https://www.mazdaspeeds.org/index.php?threads/p0091-after-engine-swap.12972/page-2
https://www.mazdaspeeds.org/index.php?threads/p0091-after-pressure-relief-valve-line-came-off.13438/
https://www.mazdaspeeds.org/index.p...ter-storage-cuts-out-p0091-p0192-p0193.14226/
https://www.mazdaspeeds.org/index.php?threads/fuel-pressure-issue-need-diag-help.12283/page-2