Ruling out the obvious things is THE WRONG WAY TO TROUBLESHOOT!

That is just going through a checklist of common things that can cause a no start.

The CORRECT way to troubleshoot is to take the symptoms, and align them to potential issue. Not potential parts, potential issues.

So in this classic crank no start scenario, those things are fuel, spark, compression. In the right amounts, at the right time.

You don't start looking at coils and injectors and fuel level, you start with which of those things might be missing. Is fuel missing, is spark missing? If both are present, then check compression.

Once you know which it is, THEN, you consider what parts. Test and rule out, etc.

If all you do is confirm fuel pump good, fuel pressure good, injectors good, coils good, timing good, compression good, you could spend, I don know, A WEEK looking at stuff and not make any real progess.

If they don't know for certain, right this second, if there is spark, if there is fuel, when its cranking, and can say how they confirmed both of those, you need to get yoir car outta there asap. Monkeys gonna monkey it upmore than already is.

The real issue is, what stupid stuff they're gonna do that first has to be undone before anyone can actually look for initial issue. In other words, now the right shop is going to have two unrelated issues to fix. Whatever they did, and whatever is actually wrong.