TORKO

P0236 Turbocharger/supercharger boost sensor A range/performance

What P0236 means

The boost pressure sensor is sending a signal, but it does not fit what the engine computer expects, for example it does not match barometric pressure with the engine off, or boost does not follow the commanded value. The computer may limit power.

P0236 is a generic SAE J2012 code: it means the same on every make. The exact cause still depends on the car, so read the freeze-frame data before replacing parts.

At a glance

Severity
Medium
Typical repair cost
80–800 €
Workshop time
0.5–3.5 h
Repair difficulty
Medium
DIY possible
Yes
Check engine light
Yes
Affects emissions test
Yes
Limp mode possible
Yes

Parts and labour at an independent workshop in Europe. Main dealers charge more; the cause decides the bill, not the code.

Symptoms

Common causes

  1. Boost leak from a split intercooler hose or loose clamp
  2. Sensor clogged with oil or soot
  3. Faulty boost pressure sensor
  4. Turbo control fault: sticking wastegate or vanes
  5. Leaking vacuum hose to the turbo actuator

Can I keep driving with P0236?

You can drive, but have it checked within one to two weeks. Expect reduced power if the engine computer switches to limp mode.

What to check first

  1. With the key on and engine off, compare the boost sensor reading with barometric pressure.
  2. Inspect all intercooler hoses and clamps for splits, oil and looseness.
  3. Remove and clean the sensor if it is oily.
  4. Compare requested and actual boost on a road test; check the turbo actuator if the sensor reads correctly.

Related codes

Data: TORKO fault-code catalogue, built on OBDex (CC0-1.0) and reviewed against workshop practice. Informational only — it does not replace a diagnosis by a mechanic.
Updated: