Why do car thieves always try to put in a different engine in each car they stole, and why does the ECU through in funky codes afterwards?

Coronavirus and Jesus Cup: you can NOT get infected. There are a great many evidences that the Sacrament of Holy Communion cannot serve as a source of infection.

Many priests carry out their ministry in places that, in terms of hygiene or adherence to medical standards, are, to put it mildly, not entirely safe. For example, Father Alexander Klimenko had to give Communion to the prisoners of the Berezan penal colony for 10 years, where there were people with HIV and an open form of tuberculosis, and after all the participants, he had to consume the Holy Gifts (that is, to eat the Holy Communion remaining in the Jesus Cup).

At the same time, he did not get sick with HIV or tuberculosis. The press secretary of the Zaporozhye diocese, archpriest Alexander Ovcharenko, calculated that over the years of his ministry, he consumed what’s left in the Jesus Cup (after previous participants) about 2600 times.

 The priest states: “As you know, completely different people come to church with many diseases. On average, two times a year in Zaporozhye there are epidemics of influenza and acute respiratory infections in general. Not once after consuming the Holy Gifts did I get sick!

On the other hand, I would only get sick if I either sat outside in the cold too long, or sat in a draft, or turned on the air conditioner. The Holy Gifts are a spiritual fire that scorches not only human sins; take my word for it.”

Deacon Irenaeus writes about this problem simply and convincingly: “At each Liturgy, people who are sick (with whichever disease) take communion. After each use, the Jesus spoon plunges into the Jesus Cup. And the remaining Gifts are consumed (eaten) by the deacon.

 About the possibility of getting infected through the Sacrament. I will say very simply, as a deacon, we (deacons) simply would not exist if infection transmitted thru Jesus Cup. We would have died out like extinct species of animals long ago.

 In our world, there are a huge number of different viruses that are transmitted both through saliva and by airborne droplets. And it's not only about tuberculosis, hepatitis, but also about other diseases, of which there really are many.

Taking this into account, the Church would have long ago switched to such forms of communion that would maximally protect a person from various infections [disposable cups, disposable spoons, personal wipes for wiping lips (preferably also disposable), sanitizers for hands and icons] - all this would be in the Church if the infection was transmitted through the Jesus Cup.

Infection is NOT transmitted through Jesus Cup.

COVID measures = heresy = blasphemy against the Holy Spirit. pochaev.org.ua/?pid=2249

Why would a lazy car thief swap out engines? 

Your question doesn't make sense. 

Scotty Kilmer is a funny man. 

Not sure what you're really asking, if anything. 

There is no car thieves category here. 

Probably because the thieves blew up the original engine.  Car thieves would do that ONLY if they knew how or was not out stealing this week.

you would have to ask the car thieves

why would thieves swap the engine unless they stole the car for the engine to put in another car?

does scotty do any work check out Diagnostic Dan or South Main Auto for how to go about it.

Thieves do NOT swap engines doofus.  They get rid of them right away so they can party or flatbed that 05 Camry they saw on the way to the chop shop.

And you have been watching too much Scottie.  Watch Eric "there is your problem lady" O at South Main Auto so you can see a professional mechanic in a real garage ACTUALLY fixing a car in real time and not doing a lot of talking.

Ain't nobody got time for that. Stolen cars either go to the chop shop and get broken down for used parts or shipped to a locale where no one will ask any questions to be sold.   

Maybe you've been listening to Scotty's oversimplified explanations and annoying voice for too long. If a part is made in China, it doesn't necessarily mean it's bad. It's the supplier/brand at the end of the day that designs or copies the part as well as sets and enforces the quality standards. A lot of aftermarket parts suppliers don't care and this becomes an issue for certain parts like sensors. The same can be said about certain automakers and their parts subcontractors. I can make fun of Ford for cutting corners on their parts and German automakers for making flimsy plastic interior parts all day long.  

Who told you that line of BS?! If you think thieves take the time to swap out a motor you're nuts. 

The fundamental premise behind your question is flawed.

Car thieves ALMOST NEVER swap engines on stolen cars. 

These days most stolen cars either get “ringed; so are assigned the identity numbers of a different car of the same make and model. The numbers usually come from an uninsured wreck and the VIN and engine numbers are usually crudely applied to the stolen vehicle to a standard intended only to deceive an unlucky buyer. 

Or they get broken down for their parts, at which stage the engine may have the original number removed and a totally new number assigned: that can be a legally permitted process when legitimately obtained engines get fully rebuilt.

Or they get driven straight to a remote location, parked up for a few days just in case they have trackers fitted, and if they prove not to have any trackers they then get driven somewhere to be loaded straight into a shipping container for export.

There simply isn’t normally any benefit to thieves to swap an engine. The exception is with some immobiliser systems where the immobiliser recognises the unique digital signature of all electronic components in the engine and transmission, and often of various dashboard and ignition components as well. 

For more expensive vehicles it can be worth buying a wreck and then transferring all of those parts onto a stolen car. In the event of the donor car having had a severe rear end impact thieves may still just do a “cut and shut” where the whole front half of the donor car gets welded to the entire rear half of the stolen car. Whilst that can be done safely, criminal gangs just want it done cheaply and only good enough to fool whoever buys the car. The front end of the stolen car then gets broken down and sold as spare parts.

Cut and shuts are not as common as they once were; it’s lower risk and more profitable to simply dismantle an immobilised stolen car and sell the parts.