Code result
P2378
Turbocharger Inlet Pressure Sensor B Circuit Intermittent or Erratic
Moderate severity
What it means
Same as P2374 but the signal is intermittent or has spikes that the ECU cannot reconcile - typically a wiring or connector fault.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Intermittent contact at connector or terminal
highOne of the most commonly reported causes for this code — check this first.
Harness chafed or pinched
mediumA plausible cause — test and verify before replacing parts.
Connector with intermittent contact under vibration
lowLess common, but worth ruling out after the more likely causes.
Related help
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