Error code

OBD2 P0236

OBD2P0236
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.

What it means

Turbo/Super Charger Boost Sensor 'A' Circuit Range/Performance.

Severity

moderateCan drive, but performance will be compromised and there's a risk of engine damage if not addressed.

Summary

P0236 indicates that the turbocharger or supercharger boost sensor 'A' is not functioning correctly, leading to inaccurate measurements of air pressure in the engine's forced-induction system.

Symptoms

  • Poor engine performance during high-power operations like heavy acceleration and high speeds
  • Abnormal noise from the forced-induction system
  • Smoke in the exhaust
  • Abnormally high engine temperature

Common Causes

  • Intake/exhaust leaks or improperly connected hoses
  • Faulty wastegate control
  • Defective turbocharger
  • Electrical issues affecting sensor signals
  • Failed boost pressure sensor

Diagnosis

  1. Inspect intake manifold, intercooler, turbocharger hoses for leaks
  2. Check wastegate actuator operation manually
  3. Measure boost pressure with a gauge during throttle snaps
  4. Test electrical connections and sensor voltages

Fixes

  • Repair or replace faulty components such as intake/exhaust hoses, wastegate control, turbocharger, or boost sensor.

FAQ

What should I do if my car has P0236?

First, check for leaks and ensure all connections are secure. If issues persist, test electrical components and measure boost pressure to diagnose the specific problem.

Can I drive with P0236?

You can drive but performance will be affected and there's a risk of engine damage if not fixed soon.

View source

Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.

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