TorqueMech OBD Code Guide
P0236 - Turbocharger/Supercharger Boost Sensor A Circuit Range/Performance
Boost sensor A reading is outside the expected range.
Code first. Confirm symptoms and checks before pricing parts.
Read code pattern
Check likely system
Estimate after confirmation
Code Overview
Boost sensor A reading is outside the expected range.
Common Causes
- Skewed boost/MAP sensor
- Intake or charge leak
- Wiring issue
- Boost control fault
Diagnostic Steps
- Compare KOEO reading to atmospheric pressure
- Inspect charge pipes and clamps
- Watch boost response during a controlled road test
Related OBD Codes
Browse nearby codes when systems overlap.
Next Steps
Move from code to checks, then estimate.