Common Symptoms
- Check engine light illuminated
- Reduced engine power or sluggish acceleration
- Excessive boost pressure or overboost condition
- Turbo lag or delayed boost response
- Unusual turbocharger noise or whistle
- Poor fuel economy
Most Likely Root Causes
- Faulty wastegate solenoid valve
- Damaged or corroded wiring harness to wastegate solenoid
- Poor electrical connection at wastegate solenoid connector
- Short to ground in wastegate solenoid control circuit
- Failed engine control module
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Component Location
The wastegate solenoid B is typically mounted on or near the turbocharger assembly or on the engine intake manifold.
Manufacturer Notes
Some manufacturers use dual wastegate solenoids for more precise boost control on variable geometry or twin-scroll turbochargers.
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