To determine if a faulty oil pressure gage sensor is causing low oil pressure, perform the following steps:
Install the Diagnostic Data Reader to the vehicles Display Data Line Adaptor, see Figure
; refer to OEM guidelines.
Start and vary the engine speed between 1800 - 2100 r/min.
Visually examine the DDR for oil pressure reading.
If the DDR indicates oil pressure greater than or equal 241 kPa (35 lb/in.2
) at 1800 r/min, shut down the engine and disconnect the DDR, check oil pressure gage sensor line for obstruction; refer to section
If the DDR indicates oil pressure less than 241 kPa (35 lb/in.2
) at 1800 r/min, shut down the engine; refer to section
Oil Pressure Gage Sensor Replacement
Perform the following steps to replace the oil pressure gage sensor:
Remove and replace the oil pressure gage sensor; refer to OEM guidelines.