P023D

Manifold Absolute Pressure - Turbocharger/Supercharger Boost Sensor A Correlation

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Reduced engine power
Unstable idling
Increased fuel consumption
Check Engine Light Illuminates

Causes

MAP sensor malfunction
Boost sensor malfunction
Air leaks in the intake tract
Turbocharger/supercharger problems
Damage to wiring harness or sensor contacts

How to Fix

Check MAP and boost sensor readings using a scan tool
Inspect the intake tract for leaks
Check the condition of the wiring harness and sensor contacts
If necessary, replace faulty sensors
Check the operation of the turbocharger/supercharger

Related codes

P0236 P0237 P0238 P0239