Common Symptoms
- Check engine light illuminated
- Reduced engine power or limp mode activated
- Poor acceleration or sluggish throttle response
- Engine may run normally at idle but lack power under load
- Wastegate may stay closed causing overboosting
- Rough running or hesitation during acceleration
Most Likely Root Causes
- Faulty turbocharger boost pressure sensor
- Damaged or corroded wiring harness to boost sensor
- Shorted sensor signal wire to voltage source
- Failed engine control module
- Loose or corroded electrical connector at boost sensor
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Component Location
The boost pressure sensor is typically mounted on the intake manifold or intercooler piping between the turbocharger and throttle body.
Manufacturer Notes
Some vehicles may set this code if aftermarket performance tuning or modifications have altered boost control parameters beyond factory specifications.
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