p0303 /p0302 codes , rough idle after timing change

I had a code to change the timing chain, (p0341) when I looked it up, a common response was chain was stretched

just changed the timing chain, checked timing, re pinned the cams - everything lines up


vtc gear wasn't changed, stock spec


now I have p0303 stored code ( flashing check light). car runs very rough, eventually dies

moved the coil pack from 3 to 4 and got 0302 (cylinder 2), so I got all new coil packs

back to p0303 stored

would a bad valve lash cause this? would the cam position when changing the chain effect the lash


changed the crank angle sensor to an older one I have and now its p0302

I did the "dollar bill" test and the bill was flapping

takes a lot of cranks to start- could be due to failing starter

pulled the plugs- from left to right

1- half fuel fouled

3- fuel fouled

4 - fuel fouled

2 - extremely fuel fouled

put in a new set of plugs, cleared the ecu by grounding the positive and negative lines for 10 minutes ( off battery) and now code 0303

changed primary 02 - code 0303 pops about 1min into running , runs better but dies quicker

ive only tested cyl 1 intake lash and they are very tight, I'm assuming there are others that are tight
updates:

lashed all of them, car runs better, doesn't die, but still throws 0303 and 0302 alternating every time I turn on the car

car still takes time to crank and the last cylinder on the driver side is fuel fouled