P2378

Turbocharger/Supercharger Inlet Pressure Sensor B Circuit Intermittent/Erratic

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$28–89 (est.)

Symptoms

Unstable engine operation
Power reduction
Increased fuel consumption
Check Engine Light Illuminates
Dips during acceleration

Causes

Turbine pressure sensor fault B
Open or short circuit in the sensor circuit
Poor contact in the sensor connector
Circuit Grounding Problems
Mechanical damage to the sensor

How to Fix

Check the integrity of the sensor wiring and connectors
Check resistance and sensor signal
Clean sensor connector contacts
Replace pressure sensor if necessary
Check sensor circuit grounding

Related codes

P2377 P2379 P2380