How people just listen to a car and can tell what is wrong with

Experience.

TTS OBD II reader

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>>16155924
>obd
cucked by the diagnostics jew I see

>>16155930

TTS OBD I reader

>>16155930
>not being able to read out anything you want in just under a minute on your notebook
KEK

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>>16155961
there's not really much to go wrong, and if you can't tell when shit is slowly starting to break then you need to git gud

>>16155979
You can read out some things earlyer than you would realise them like a slightly off air/fuel ratio or a wrong ignition timing or carbon deposits on your piston/cylinderhead/valves if you know what you have to look for.
Also you won´t lose anything by having a OBDII port.

By listening to a lot of broken cars you already know what's wrong with.

>OBD2 is a magic device that will diagnose any problem for you!

>>16156019
please explain how having an OBDII unit allows you to know if your valves have carbon deposits.

>>16156046
You can read it out by looking at the ignition timing wich will be early since the deposits will get your engine to knock.

>>16156063
that won't show you the amount of buildup, and carbon deposits don't make your engine knock. detonation won't be caused by that.

Drive a Ford

after ~3 years you will have had to replace every major component at least twice. By then you'll be pretty good at fixing/repairing cars

>>16155906
>Bitter experience