P0238

Turbocharger/Supercharger Boost Sensor A Circuit High

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Loss of engine power
Increased fuel consumption
Rough engine operation
Check Engine Light Illuminates

Causes

Boost pressure sensor malfunction
Open or short circuit in wiring harness
Poor contact in the sensor connector
ECU malfunction
Turbocharger/supercharger mechanical problems

How to Fix

Visually check the wiring harness and sensor connectors for damage.
Check the voltage and resistance of the boost pressure sensor
Check the operation of the turbocharger/supercharger
If necessary, replace the sensor or repair the wiring harness

Related codes

P0236 P0237 P0239