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TROUBLESHOOTING MULTIPORT FUEL INJECTION (MPI) 13A-387 INTAKE CAMSHAFT POSITION SENSOR 1. Disconnect the camshaft position sensor connector and connect the special tool test 2. Connect the oscilloscope special pattern pickup to camshaft position sensor terminal No. 2. 3. To check the state of the intake camshaft position sensor output signal, observe its synchronicity Alternate Method (Test harness not available) 1. Connect the oscilloscope special patterns pickup to engine-ECU terminal No. 53 (When checking Standard Wave Pattern Observation condition 2 3 3 2 1 1 AK000840 Special patterns Oscilloscope AD Intake camshaft Crank angle Function Special patterns Pattern height Low Pattern selector Display Engine speed Idle AK403888 4 AC 2 engine revolutions (1 camshaft revolution) (V) 0 4 0 (Time) T Standard wave pattern Crank angle sensor Intake camshaft phase angle at retard angle at advance angle |