TorqueMech Beta
TorqueMech OBD Code Guide

P0238 - Turbocharger/Supercharger Boost Sensor A Circuit High

Boost sensor A signal is too high.

Code first. Confirm symptoms and checks before pricing parts.

Read code pattern Check likely system Estimate after confirmation

Code Overview

Boost sensor A signal is too high.

Common Causes

  • Open circuit
  • Short to voltage
  • Sensor fault
  • Connector issue

Diagnostic Steps

  1. Inspect for an open signal wire or damaged connector
  2. Check for a short to voltage
  3. Compare scan data to a mechanical boost reading if available

Likely Repairs & Cost Guides

Confirm the repair path before pricing parts.

Continue Estimate

Next Steps

Move from code to checks, then estimate.