Lesson 2 of 3 · Mechanic challenges

Pressure takes a detour

3 min25 XP3 questions

Low pressure is a symptom. What does a visible gap add to the explanation?

Read the simulated evidence and choose the conclusion it supports. These exercises teach reasoning; they are not a diagnosis of a real vehicle.

The idea

A gap after the compressor is direct evidence about the compressed-air path. It narrows the simulation beyond the low-pressure reading alone.

Simulated requested boost exceeds measured intake pressure.

The turbo speed signal follows its expected pattern.

A simulated charge pipe has an open gap downstream of the compressor.

Think it through

In the simulator, air is seen escaping at the pipe gap under pressure. Is that more useful for the leak explanation than seeing the same low-boost warning a second time?

Show the reasoning

Yes. Escaping air adds an observation at the proposed cause; repeating the warning only repeats the symptom. If pressure stays low after the gap is closed, continue considering other causes.

Take away
  • Separate a repeated symptom from new causal evidence.
  • Allow more than one problem in the explanation.