Hi all
New to the forum

Finally got D2 in Chawton White and am loving it so far, the visibility and driving position is the best I've ever experienced.

Overall it is in a good shape, 135k miles, refreshed suspension, relatively clean interior but the engine needs some TLC

I know it is seeping some oil from the back of the engine towards the t-case, today I read SES codes, and here's what I have:

P130 - O2 sensor circuit bank 1 sensor 1
P305 - Cylinder 5 misfire
P171 - System lean bank 1
P1171 - O2 sensor too lean bank a and bank b
P441 - Evap system incorrect flow

I assume these older oil leaks have gotten into O2 sensors, causing part of these codes.
I know the previous owner replaced plugs and wires around 50K miles ago, and the engine seems to run smoothly and without issues.
However, I do have an exhaust leak (nor a major one).

What would be the best course of action here in terms of attacking these codes one by one? I am thinking to replace the O2 sensor, clean MAF, tighten all clamps & hoses, fix the exhaust leaks and see what codes go away?

Thank you!

 

Just a few Informations in case you don't read all my replies. I am living in Europe, so any courses would need to be online and be doable in my own time. Full Time courses are out of the Question for me healthwise, so I am looking for something to do in my own time, spending around 2 hours per day during the weekdays, because I am still recovering from a long illness. I have a couple of months to spread it out to as well, so that shouldn't be too big an issue. Thing is, I cannot just read books and free Websites. As additional Ressources - great, keep the recommendations coming. However, in the end, some kind 192.168.100.1 192.168.1.1 of paid course over several months would be the best and some people have already pointed out bootcamps, so I will have a look at them.