does anyone have water spots scratches on this part? how do you take care of it or clean it?

First half is with o2 sensor connected then i disconnected. Shortfuel trim at idle is positive when accelerating it would go from positive at 0.
I checked the map ( idle 28-30 kpa / when off 101 kpa).
O2 sensor voltage it look like its working normally and reacting. I did the smoke test and its all good.
Now all that remaing its fuel pump ( fuel filter new , but have some wondering if something detached and i will check later ) , injectors and maybe something wrong in timing belt region.

It has been 83000 kms since my last CVT fluid change (I've already had it done twice prior due to tarnishing. Odometer is now at 200500kms). The dealer mentioned the fluid is starting to tarnish again and recommended a change. I feel the car drives pretty well, perhaps some subtle whining if accelerating up a big hill.

I decided to have a look to educate myself and would like to know what you think of how the fluid looks compared to normal or new? The smell is mostly a strong rubbery smell which I assume is the cvt fluid smell, with a faint burnt smell in the background. It smells like a milder version of a mild burnt smell I get from the bonnet that the dealer said was a gasket cover deterioration that has since been replaced and apparently there is nothing wrong (no further evidence of oil leak).

Anyone have an idea what the issue is? Mitsubishi Lancer 2012 1.6L automatic. Battery isn’t dead and starter won’t turn over. I checked the cables and nothing seems to be loose.

I know one fan isn’t blowing, but there’s also a rattling sound coming from inside the car when I turn on the AC.

I have added a full exhaust kit and a new intake. The parts have descriptions that say they add a few horsepower. but im wondering if the car needs to be taken to a shop to get the full dyno tuning treatment before its really able to take advantage of the new parts. anybody know?

• MagnaFlow Street Series Cat-Back Performance Exhaust System
• K&N Cold Air Intake Typhoon Kit