I bought a Toyota Corolla 1999 with 177,000 miles for $1000. This is just a video of me fixing the immediate issues. Hope you guys enjoy.
Now for the torque specs
Valve cover bolts 7 foot pounds
02 sensor upstream 12 mm nuts 14 foot pounds
Oil drain plug 27 foot pounds
Hope that helps
Also, you can use this video to fix the following codes
P0171 P0125 P0130 P0133