EJ20x finding answers

[garrettwilliams]

i have a couple of things im impatient and just dont know were to start just seeing if i can get some help 

 

1st question is a month ago i had the manual transmission drain plug replaced cause it was leaking badly did a fluid flush as well 

the tranny does not grind or pop but my driver side axle is also bad and jt seems to have leakage around my drain plug but just droplets again 

2nd question iam getting new plug's thursday and i have a feeling my car will still be misfiring it seems to me that its the injectors but still seems to have hesitation when it idles below 1rpm is that cause avcs us unplugged 

one i put gallons of injector cleaner into my car reset the emc i only get codes for tgv deletes and sometimes cylinders 1and 2 it used to be 124

if anyone can help me w these it would be a godsend