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(2) Position the sensor (Fig. 3) and install the fas- teners. (3) Connect the negative battery cable. BOOST PRESSURE SENSOR DESCRIPTION The boost pressure sensor is mounted to the charge air pipe (Fig. 4). The sensor allows the ECM to mon- OPERATION When the intake manifold pressure is high due to turbo boost, sensor voltage output is 2.0-4.7 volts. DIAGNOSIS AND TESTING - BOOST PRESSURE If the boost pressure sensor fails, the ECM records a DTC into memory and continues to operate the t scan tool. Refer to the Diesel Powertrain Diagnostic Manual for more Refer to On-Board Diagnostics in Emissions Con- trol System for a list of Diagnostic Trouble Codes REMOVAL (1) Disconnect the negative battery cable. sensor (Fig. 5) and O-ring. INSTALLATION (1) Inspect boost pressure sensor O-ring for cuts or abrasions, replace as necessary. (2) Position the boost pressure sensor above access hole in the charge air pipe and push down to fit flush (3) Install the bolts and tighten to 44 lbs. in. (5 N·m) (Fig. 21). (4) Reconnect the sensor electrical connector (Fig. 21). (5) Connect negative battery cable CAMSHAFT POSITION SEN- DESCRIPTION The camshaft position sensor is mounted on the cylinder head cover toward the rear of the engine. Fig. 4 BOOST PRESSURE SENSOR Fig. 5 BOOST PRESSURE AND INLET AIR TEMPERATURE SENSORS 1 - CHARGE AIR DUCT VA FUEL INJECTION 14 - 33 |