P0244
Turbocharger Wastegate Solenoid A Malfunction
Powertrain Emission Controls Turbo Boost Control 🟡 Moderate — Fix within a week
💬
What This Actually Means
In plain language — no jargon

The turbocharger's wastegate solenoid, which controls boost pressure like a pressure relief valve, is not working properly. The engine computer detected the solenoid isn't responding to commands or is stuck.

⚡
Symptoms You May Notice
3 known symptoms for this code
Reduced engine power or limp mode activation
Check engine light illuminated
Excessive turbo boost or underboost condition
🔬
Embedded Systems Insight
What the ECU/ECM is actually computing

The ECM sends a control signal to the wastegate solenoid and monitors the response via feedback voltage or current draw. If the solenoid doesn't actuate within expected electrical parameters or the turbo boost doesn't reach target pressure after actuation, a fault is triggered. The ECU compares actual boost against predicted values based on solenoid command.

Voltage & Parameter Thresholds

Parameter Normal Range Fault Condition
Solenoid Coil Resistance 5-15 ohms Open circuit (∞) or short (<2 ohms)
Boost Pressure Response Reaches target within 0.5 seconds of solenoid actuation No pressure change or delayed response >1.5 seconds
🔧
Diagnostic & DIY Fix Guide
Check these in order — from cheapest to most complex
1
Electrical connector and wiring harness
Inspect the solenoid connector for corrosion, loose pins, or damaged wires; clean contacts with electrical cleaner.
2
Wastegate solenoid valve
Remove the solenoid from the turbo assembly and test ohm resistance; replace if open or shorted.
3
Turbocharger control hoses
Check vacuum/boost lines to the wastegate actuator for cracks or disconnection; reattach or replace as needed.