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F1 NG INE D AI LY 430 B as e - M ay 2004 P rin t 603. 93. BLINK CODE EDC LAMP POSSIBLE CAUSE POSSIBLE TESTS OR RECOMMENDED ACTION NOTES 2.4 Blinking Air pressure sensor on manifold short- circuited or circuit open. Or waste-gate valve malfunctioning. Decrease in power. Possible oscillation while driving with engine at full Read measurable parameters with the If the indicated value is fixed at 2000 If the wiring is sound: Check that the waste-gate valve is not The pressure sensor is integrated with the If the waste-gate valve is jammed shut, there may - power limitation trips when accelerating under load; - the turbocharging pressure drops; - the engine goes back to normal operation and the pressure increases; - limitation trips again; - etc. If the turbocharging pressure really is too high, 2.5 Off Ambient pressure sensor Possibly some black smoke at is not excluded at altitude). The sensor is integrated in the EDC Any painting on the engine/control unit may 2.7 On Fuel motor pump relay coil Fuel motor pump always on The battery discharges. Early deterioration of the Or Active diagnosis of the relay with the Take out the relay 25837, located in If the pump cuts out, replace the relay. If the pump does not cut out, check the You hear the noise of the pump turning |