P0244: Turbocharger Wastegate Solenoid A Range/Performance Fault
Reduced engine power and boost pressure with possible limp mode activation
Overview
OBD2 P0244 indicates a fault in the turbocharger wastegate solenoid A circuit where the PCM detects range or performance outside expected parameters leading to reduced boost and power.
Common Symptoms
- Check engine light illuminated
- Reduced acceleration and engine power
- Lower than expected boost pressure
- Possible limp mode or engine derate
Most Common Causes
Primary component monitored by PCM; common electrical/mechanical failure.
Open, shorted or corroded wiring can cause out‑of‑range signals.
Leaks can prevent correct actuator movement resulting in performance errors.
Mechanical restrictions can mimic electrical circuit faults.
Least likely; requires elimination of other causes first.
Diagnostic Steps
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Connect a professional OBD‑II scanner and confirm code P0244Expected: P0244 present in stored codesInterpretation: Verifies initial fault before proceeding
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Perform visual inspection of solenoid wiring and connectorsExpected: No damage, corrosion, or disconnectionsInterpretation: Wiring issues may trigger code if anomalies are found
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Check wastegate solenoid resistance with multimeterExpected: Resistance within manufacturer specsInterpretation: Open or shorted solenoid indicates replacement
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Inspect vacuum/boost hoses for leaks or disconnectionsExpected: Hoses intact with no leaksInterpretation: Leaking hoses can affect boost control
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With ignition on, measure voltage at solenoid power and groundExpected: 12V power and good ground only when commandedInterpretation: Incorrect readings suggest wiring or PCM issue
Repair Solutions
Part and labor cost depend on vehicle make and model
Includes cleaning corroded pins and securing connections
Replace cracked hoses or secure loose fittings
May require turbocharger removal and specialist tools
Only after verifying other system components
Common Misdiagnoses
Avoid these common diagnostic mistakes:
- MAP/boost sensor fault incorrectly assumed as P0244 cause
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