Insignia P2263 turbo boost system performance

005Lack of power? Limp mode? Wont go above 80MPH? This code refers to a problem with either the fuel delivery system or a malfunctioning turbocharger boost system. Both systems have a direct effect on the performance of the each other.

The turbocharger pressure sensor responds to pressure changes in the inlet manifold. The pressure changes occur based on the engine load, and turbocharger boost. The engine control module (ECM) supplies 5 V to the turbocharger pressure sensor on the 5 V reference circuit. The ECM provides an ground on the low reference circuit. The turbocharger pressure sensor provides a signal to the ECM on the signal circuit which is relative to the pressure changes in the manifold.

    1. Inspect the inlet, and the exhaust systems for leaks
    2. Disconnect boost solenoid and test vaccum at turbocharger Vane Position Control Solenoid Valve vacuum supply hose.
    3. Engine running, command the Turbocharger Vane Position to 5% with a scan tool.
    4. If vacuum systems check OK but actuator arm will not move,then turbocharger needs removal for inspection/replacement.

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